заочникам / векторная алгебра / vector
.pdfЗадача 10
Найти работу силы F на пути ABC, |
если: |
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N |
F |
A |
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B |
C |
1 |
F (3,−2,1) |
A(0,−1,3) |
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B(1,−4,2) |
C(3,1,0) |
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2 |
F (−2,0,4) |
A(3,−2,5) |
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B(0,−1,3) |
C(2,−5,6) |
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3 |
F (3,2,−1) |
A(4,5,0) |
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B(3,1,2) |
C(0,6,1) |
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4 |
F (2,−5,3) |
A(4,0,−3) |
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B(2,1,0) |
C(5,2,−4) |
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5 |
F (2,3,−4) |
A(4,1,0) |
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B(3,−2,1) |
C(0,−2,3) |
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6 |
F (3,4,−2) |
A(5,0,−4) |
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B(4,1,2) |
C(3,−2,5) |
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7 |
F (4,−3,1) |
A(4,5,−2) |
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B(6,0,−3) |
C(3,−2,1) |
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8 |
F (2,−3,5) |
A(6,3,−2) |
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B(4,−2,1) |
C(0,1,3) |
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9 |
F (3,−2,1) |
A(4,1,0) |
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B(0,4,−3) |
C(3,−2,5) |
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10 |
F (4,2,−3) |
A(4,1,3) |
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B(2,−3,1) |
C(5,0,−2) |
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11 |
F (3,2,−1) |
A(4,−1,1) |
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B(3,0,−2) |
C(4,1,−3) |
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12 |
F (4,2,−5) |
A(4,4,−2) |
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B(4,5,−6) |
C(6,0,5) |
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13 |
F (5,1,0) |
A(5,1,3) |
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B(−3,1,6) |
C(7,2,4) |
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14 |
F (3,−2,6) |
A(0,−2,4) |
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B(3,1,2) |
C(4,3,4) |
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15 |
F (3,3,5) |
A(2,−1,3) |
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B(2,4,1) |
C(7,4,−2) |
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16 |
F (2,3,5) |
A(0,−2,3) |
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B(2,3,0) |
C(5,2,6) |
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17 |
F (3,−2,4) |
A(4,−2,0) |
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B(0,2,−3) |
C(5,4,3) |
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18 |
F (3,1,4) |
A(3,2,−1) |
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B(3,1,2) |
C(5,3,4) |
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19 |
F (3,4,1) |
A(3,1,5) |
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B(2,3,−5) |
C(4,6,−1) |
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20 |
F (4,−5,2) |
A(3,1,4) |
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B(0,−1,2) |
C(6,5,4) |
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21 |
F (3,1,5) |
A(2,3,4) |
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B(3,0,2) |
C(−2,1,5) |
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22 |
F (5,6,−2) |
A(2,1,3) |
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B(−2,0,4) |
C(3,−2,6) |
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23 |
F (4,−3,2) |
A(3,−2,5) |
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B(0,1,−3) |
C(−2,1,3) |
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24 |
F (0,2,−3) |
A(4,3,5) |
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B(−2,1,3) |
C(5,6,−1) |
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25 |
F (3,−2,5) |
A(3,2,−1) |
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B(1,5,−3) |
C(6,4,−2) |
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26 |
F (4,1,3) |
A(3,4,−3) |
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B(2,0,1) |
C(5,7,−2) |
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27 |
F (4,5,−2) |
A(3,−4,2) |
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B(0,−2,1) |
C(2,−1,5) |
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28 |
F (3,2,6) |
A(−2,1,3) |
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B(3,0,1) |
C(4,−2,3) |
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29 |
F (0,−3,1) |
A(2,3,−2) |
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B(4,2,0) |
C(5,7,−1) |
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30 |
F (3,−2,5) |
A(2,3,−1) |
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B(0,1,3) |
C(−1,2,4) |
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Задача 11
Доказать, что векторы |
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образуют базис плоскости и найти координаты вектора c в |
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a, b |
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этом базисе. |
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N |
a |
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b |
c |
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1 |
a(3,−2) |
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b (2,3) |
c(5,12) |
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2 |
a(2,3) |
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b (1,−3) |
c(−1,12) |
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3 |
a(2,−1) |
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b (3,−2) |
c(−5,4) |
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4 |
a(−3,−2) |
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b (1,4) |
c(7,8) |
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5 |
a(−2,1) |
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b (2,3) |
c(4,10) |
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6 |
a(3,5) |
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b (−2,4) |
c(12,−2) |
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7 |
a(4,1) |
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b (3,−2) |
c(18,−1) |
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8 |
a(5,2) |
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b (3,−1) |
c(1,7) |
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9 |
a(2,−3) |
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b (1,2) |
c(−3,8) |
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10 |
a(3,−2) |
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b (2,−1) |
c(2,−2) |
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11 |
a(1,3) |
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b (2,−4) |
c(−5,15) |
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12 |
a(2,−1) |
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b (4,−2) |
c(−8,4) |
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13 |
a(3,−2) |
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b (2,−4) |
c(13,−14) |
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14 |
a(2,−1) |
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b (4,−2) |
c(8,−4) |
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15 |
a(1,3) |
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b (3,5) |
c(−1,1) |
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16 |
a(2,−3) |
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b (3,1) |
c(7,−5) |
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17 |
a(3,−1) |
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b (4,−2) |
c(2,0) |
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18 |
a(4,−2) |
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b (3,−1) |
c(6,−4) |
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19 |
a(3,−1) |
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b (2,−3) |
c(12,−11) |
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20 |
a(−1,2) |
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b (2,−3) |
c(−6,10) |
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21 |
a(−3,2) |
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b (2,−5) |
c(−11,11) |
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22 |
a(1,2) |
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b (−2,3) |
c(4,1) |
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23 |
a(−1,3) |
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b (2,4) |
c(−5,5) |
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24 |
a(1,3) |
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b (2,2) |
c(4,8) |
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25 |
a(2,5) |
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b (1,−2) |
c(7,22) |
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26 |
a(2,3) |
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b (1,4) |
c(8,17) |
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27 |
a(−1,2) |
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b (2,−3) |
c(0,1) |
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28 |
a(−3,2) |
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b (−2,1) |
c(−7,5) |
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29 |
a(−1,3) |
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b (2,−3) |
c(4,−3) |
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30 |
a(1,3) |
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b (2,4) |
c(0,2) |
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Задача 12
Доказать, что векторы |
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компланарны, a |
и b - неколлинеарны. Найти линейную |
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a, b, c |
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зависимость вектора c от a и b. |
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N |
a |
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b |
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c |
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1 |
a(2,−1,3) |
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b (2,−1,0) |
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c(6,−3,6) |
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2 |
a(1,−3,2) |
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b (1,2,−1) |
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c(4,−7,5) |
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3 |
a(−2,1,2) |
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b (1,2,−1) |
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c(−1,8,1) |
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4 |
a(−1,2,3) |
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b (2,−1,2) |
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c(−8,7,0) |
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5 |
a(3,−1,2) |
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b (−2,1,3) |
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c(11,−4,3) |
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6 |
a(1,−3,4) |
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b (2,−2,3) |
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c(−3,1,−2) |
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7 |
a(2,−2,1) |
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b (3,−1,2) |
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c(12,−8,7) |
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8 |
a(3,−1,2) |
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b (1,−2,3) |
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c(10,0,2) |
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9 |
a(4,−1,2) |
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b (3,−2,1) |
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c(5,0,3) |
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10 |
a(2,−2,1) |
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b (3,−1,2) |
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c(3,−5,1) |
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11 |
a(2,−3,1) |
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b (3,−2,2) |
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c(−5,0,−4) |
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12 |
a(3,1,−1) |
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b (2,3,−2) |
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c(−1,−5,3) |
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13 |
a(4,1,−3) |
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b (3,−1,−2) |
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c(−1,5,0) |
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14 |
a(2,−3,1) |
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b (3,−2,−1) |
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c(8,−7,−1) |
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15 |
a(3,2,−1) |
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b (4,3,−2) |
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c(1,0,1) |
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16 |
a(1,−2,3) |
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b (2,−1,3) |
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c(−2,−5,3) |
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17 |
a(3,−2,5) |
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b (2,−1,3) |
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c(5,−4,9) |
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18 |
a(1,−2,3) |
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b (2,−1,2) |
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c(2,−7,10) |
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19 |
a(2,−1,4) |
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b (1,−2,3) |
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c(4,1,6) |
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20 |
a(3,−1,4) |
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b (2,−2,−3) |
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c(8,−4,5) |
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21 |
a(2,−3,4) |
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b (1,−1,−3) |
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c(7,−9,−1) |
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22 |
a(1,−3,3) |
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b (2,1,−2) |
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c(7,−7,5) |
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23 |
a(2,−2,4) |
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b (1,3,−2) |
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c(5,7,−2) |
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24 |
a(1,−3,2) |
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b (2,1,−3) |
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c(5,−8,3) |
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25 |
a(2,−1,3) |
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b (1,2,−1) |
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c(7,4,3) |
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26 |
a(3,2,−1) |
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b (−1,−4,3) |
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c(6,−6,6) |
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27 |
a(2,1,−3) |
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b (3,−1,−2) |
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c(8,−1,−7) |
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28 |
a(1,3,−2) |
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b (2,1,4) |
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c(4,7,0) |
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29 |
a(3,2,1) |
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b (2,3,−1) |
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c(5,0,5) |
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30 |
a(4,1,−2) |
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b (3,2,−1) |
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c(9,1,−5) |
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Задача 13
Доказать, что векторы |
r r |
линейно независимы и найти координаты вектора d в базисе |
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a, b, c |
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r |
r |
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a, b, c. |
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N |
a |
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b |
c |
d |
1 |
a(1,−2,3) |
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b (3,−1,0) |
c(2,−1,1) |
d (3,−2,5) |
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2 |
a(2,−1,4) |
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b (1,0,2) |
c(3,−2,5) |
d (4,0,9) |
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3 |
a(3,−1,0) |
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b (4,2,3) |
c(5,3,−1) |
d (7,−5,8) |
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4 |
a(4,2,−1) |
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b (3,0,−1) |
c(3,1,−2) |
d (9,7,−1) |
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5 |
a(3,−2,1) |
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b (2,−1,0) |
c(4,−2,2) |
d (4,−3,0) |
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6 |
a(2,−1,3) |
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b (1,−2,4) |
c(3,0,2) |
d (1,−2,4) |
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7 |
a(3,2,−4) |
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b (2,1,−1) |
c(1,3,−3) |
d (4,1,−5) |
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8 |
a(2,−1,3) |
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b (3,−2,4) |
c(1,−3,2) |
d (1,5,1) |
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9 |
a(1,−3,2) |
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b (2,−1,1) |
c(3,−4,2) |
d (3,−9,5) |
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10 |
a(−2,1,3) |
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b (1,2,2) |
c(−1,3,1) |
d (−6,3,1) |
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11 |
a(2,3,−1) |
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b (1,2,0) |
c(3,5,1) |
d (3,6,2) |
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12 |
a(3,1,−1) |
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b (2,2,1) |
c(4,0,3) |
d (3,5,−2) |
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13 |
a(3,2,−2) |
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b (2,1,−3) |
c(5,3,−4) |
d (3,2,−3) |
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14 |
a(4,2,−1) |
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b (3,−1,1) |
c(7,1,2) |
d (5,5,−1) |
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15 |
a(1,3,−2) |
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b (2,1,−1) |
c(2,3,−3) |
d (6,6,−4) |
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16 |
a(2,0,−1) |
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b (1,2,−3) |
c(1,2,−4) |
d (6,0,−1) |
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17 |
a(3,1,−1) |
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b (2,2,−3) |
c(5,1,−4) |
d (5,5,−4) |
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18 |
a(4,−2,1) |
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b (3,−1,2) |
c(2,0,−1) |
d (3,−3,1) |
|
|
|
|
|
|
|
19 |
a(3,−1,2) |
|
|
b (2,−2,3) |
c(5,−3,1) |
d (2,−2,7) |
|
|
|
|
|
|
|
20 |
a(2,4,−1) |
|
|
b (1,3 − 2) |
c(1,7,−3) |
d (5,7,−3) |
|
|
|
|
|
|
|
21 |
a(3,1,−2) |
|
|
b (2,3,−1) |
c(1,4,−3) |
d (6,7,−9) |
|
|
|
|
|
|
|
22 |
a(4,1,−2) |
|
|
b (3,2,−1) |
c(1,3,−3) |
d (7,2,−7) |
|
|
|
|
|
|
|
23 |
a(1,3,−2) |
|
|
b (2,−1,1) |
c(3,1,−1) |
d (−7,9,−6) |
|
|
|
|
|
|
|
24 |
a(2,−2,1) |
|
|
b (3,−1,2) |
c(5,−3,1) |
d (2,−2,3) |
|
|
|
|
|
|
|
25 |
a(3,−1,2) |
|
|
b (2,−2,1) |
c(1,−3,2) |
d (3,3,1) |
|
|
|
|
|
|
|
26 |
a(2,−1,3) |
|
|
b (3,−2,1) |
c(1,2,3) |
d (−2,−2,0) |
|
|
|
|
|
|
|
27 |
a(3,−2,2) |
|
|
b (1,−1,2) |
c(2,−1,1) |
d (4,−2,1) |
|
|
|
|
|
|
|
28 |
a(2,−1,1) |
|
|
b (1,−2,2) |
c(3,−3,1) |
d (2,−1,3) |
|
|
|
|
|
|
|
29 |
a(1,−2,3) |
|
|
b (2,−1,2) |
c(3,−3,1) |
d (2,−2,6) |
|
|
|
|
|
|
|
30 |
a(4,−1,2) |
|
|
b (3,−2,1) |
c(1,1,0) |
d (6,1,3) |
|
|
|
|
|
|
|
Задача 14
Найти составляющие h и g вектора c, |
ортогональную и компланарную векторам a и b. |
|||||
N |
a |
|
b |
|
c |
|
1 |
a |
(2,0,1) |
b (0,−1,−1) |
|
c(5,1,−1) |
|
|
|
|
|
|
|
|
2 |
c(3,6,1) |
b (8,16,0) |
|
c(3,1,3) |
|
|
|
|
|
|
|
|
|
3 |
a(5,1,−1) |
b (9,3,−1) |
|
c(0,−1,4) |
|
|
|
|
|
|
|
|
|
4 |
a(2,1,−3) |
b (7,4,−10) |
|
c(3,0,0) |
|
|
|
|
|
|
|
|
|
5 |
a(3,−1,3) |
b (2,0,4) |
|
c(1,4,0) |
|
|
|
|
|
|
|
|
|
6 |
a(1,−2,1) |
b (0,−4,3) |
|
c(4,3,3) |
|
|
|
|
|
|
|
|
|
7 |
a(2,−3,2) |
b (5,−8,4) |
|
c(5,1,1) |
|
|
|
|
|
|
|
|
|
8 |
a(2,3,−3) |
b (2,5,−3) |
|
c(5,1,−1) |
|
|
|
|
|
|
|
|
|
9 |
a |
(1,1,1) |
b (3,3,4) |
|
c(3,−3,1) |
|
|
|
|
|
|
|
|
10 |
a |
(1,2,−1) |
b (1,4,−1) |
|
c(5,0,−1) |
|
|
|
|
|
|
|
|
11 |
a |
(1,4,0) |
b (3,10,−1) |
|
c(5,1,1) |
|
|
|
|
|
|
|
|
12 |
a |
(1,−5,0) |
b (2,−8,1) |
|
c(6,−2,−1) |
|
|
|
|
|
|
|
|
13 |
a |
(1,2,2) |
b (0,1,3) |
|
c(5,−2,0) |
|
|
|
|
|
|
|
|
14 |
a |
(2,−1,4) |
b (5,−1,13) |
|
c(4,3,4) |
|
|
|
|
|
|
|
|
15 |
a |
(4,1,4) |
b (10,1,7) |
|
c(−1,5,−1) |
|
|
|
|
|
|
|
|
16 |
a |
(1,2,5) |
b (4,4,16) |
|
c(4,−1,0) |
|
|
|
|
|
|
|
|
17 |
a |
(3,3,−1) |
b (7,8,−2) |
|
c(4,0,2) |
|
|
|
|
|
|
|
|
18 |
a |
(4,1,−1) |
b (6,2,−1) |
|
c(3,−1,2) |
|
|
|
|
|
|
|
|
19 |
a |
(1,1,−1) |
b (2,1,−4) |
|
c(6,1,−2) |
|
|
|
|
|
|
|
|
20 |
a |
(1,0,2) |
b (3,−2,5) |
|
c(5,−1,−1) |
|
|
|
|
|
|
|
|
21 |
a |
(1,1,0) |
b (0,1,3) |
|
c(5,−2,−2) |
|
|
|
|
|
|
|
|
22 |
a |
(2,1,−1) |
b (5,4,−2) |
|
c(1,0,4) |
|
|
|
|
|
|
|
|
23 |
a |
(1,1,−2) |
b (2,1,−6) |
|
c(5,0,1) |
|
|
|
|
|
|
|
|
24 |
a |
(2,3,1) |
b (4,2,2) |
|
c(3,−1,−1) |
|
|
|
|
|
|
|
|
25 |
a |
(2,−6,0) |
b (1,−5,−1) |
|
c(4,0,−1) |
|
|
|
|
|
|
|
|
26 |
a |
(−1,−1,1) |
b (0,−3,1) |
|
c(4,0,2) |
|
|
|
|
|
|
|
|
27 |
a |
(2,2,3) |
b (3,2,3) |
|
c(1,−1,5) |
|
|
|
|
|
|
|
|
28 |
a |
(−1,1,1) |
b (−1,3,4) |
|
c(3,3,−1) |
|
|
|
|
|
|
|
|
29 |
a |
(0,3,1) |
b (−1,11,3) |
|
c(3,−1,−3) |
|
|
|
|
|
|
|
|
30 |
a |
(2,1,2) |
b (3,2,4) |
|
c(1,−1,3) |
|
|
|
|
|
|
|
|
Задача 15
В параллелограмме ABCD с срединами сторон E, F , G, H и вектором M найти вершины, если даны:
N |
Точки |
1 |
E(4,−4,4), F (8,−3,2),Y (6,2,−2) |
|
|
2 |
E(1,−5,2),Y (5,−11,2), H (3,−5,1) |
|
|
3 |
F (7,−11,7),Y (9,−10,6), H (5,−5,5) |
|
|
4 |
E(6,2,2), F (10,−1,7), H (8,3,1) |
|
|
5 |
E(4,5,2), F (7,7,7), M (6,4,5) |
|
|
6 |
F (8,−12,10), M (6,−8,7),Y (9,−10,8) |
|
|
7 |
Y (14,−2,10), M (10,−1,7), H (8,−4,8) |
|
|
8 |
E(5,1,−3), M (9,−2,1), H (6,0,−2) |
|
|
9 |
E(3,3,5), F (6,4,8),Y (7,−3,7) |
|
|
10 |
F (13,−1,4),Y (12,−2,3), H (5,1,−2) |
|
|
11 |
E(5,4,3),Y (7,8,−3), H (3,5,−4) |
|
|
12 |
E(5,3,7), F (8,8,15), H (6,0,5) |
|
|
13 |
E(4,−3,3), F (7,−3,8), M (6,−2,6) |
|
|
14 |
F (−1,3,8),Y (0,4,7), M (1,2,6) |
|
|
15 |
Y (7,1,9), H (4,−2,4), M (6,−1,6) |
|
|
16 |
E(5,0,4), H (4,1,3), M (6,3,6) |
|
|
17 |
E(4,2,4), F (7,7,6),Y (6,6,6) |
|
|
18 |
F (8,3,9),Y (7,4,8), H (4,−1,3) |
|
|
19 |
E(6,−1,3),Y (8,5,7), H (5,5,3) |
|
|
20 |
E(5,0,2), F (8,5,5), H (4,1,3) |
|
|
21 |
E(6,−1,3), F (9,4,6), M (7,2,5) |
|
|
22 |
F (2,4,6),Y (5,5,7), M (4,2,5) |
|
|
23 |
Y (9,6,7), H (6,1,4), M (7,3,6) |
|
|
24 |
E(5,1,5), H (4,2,3), M (6,4,6) |
|
|
25 |
E(4,−2,1), F (7,2,6),Y (6,4,5) |
|
|
26 |
F (8,3,9),Y (7,4,8), H (4,−1,3) |
|
|
27 |
E(4,−3,2), G(7,1,5), H (3,−1,1) |
|
|
28 |
E(2,4,−2), F (1,5,2), M (2,4,0) |
|
|
29 |
E(6,6,4), H (4,3,−1), M (3,5,2) |
|
|
Задача 16
Отрезок A1 A5 разделен на четыре равные части. Найти координаты остальных точек, если даны:
N |
Дано |
N |
Дано |
|||
1 |
A1 |
(2,−1,3), A4 (5,5,−3) |
16 |
A1 |
(3,−7,5), A4 (6,2,−1) |
|
2 |
A2 (3,−1,2), A5 (6,5,5) |
17 |
A2 |
(3,−2,3), A5 (9,7,9) |
||
|
|
|
|
|
|
|
3 |
A1 |
(−4,2,1), A3 (2,4,5) |
18 |
A1 |
(−8,1,5), A3 (−2,5,3) |
|
|
|
|
|
|||
4 |
A2 (3,−2,3), A4 (7,4,5) |
19 |
A (4,0,4), A (−2,4,2) |
|||
|
|
|
|
2 |
4 |
|
5 |
A3 (5,2,1), A5 (9,8,−1) |
20 |
A3 (2,0,3), A5 (−2,4,5) |
|||
|
|
|
|
|
|
|
6 |
A1 |
(2,−3,2), A4 (5,6,−1) |
21 |
A1 |
(1,5,−5), A4 (7,−1,4) |
|
7 |
A2 (−2,2,1), A5 (4,5,−2) |
22 |
A2 |
(−1,−4,3), A5 (2,5,−3) |
||
|
|
|
|
|
|
|
8 |
A1 (1,−2,5), A3 (5,2,3) |
23 |
A1 (4,1,−6), A3 (0,5,0) |
|||
9 |
A2 (3,−1,3), A4 (5,3,1) |
24 |
A2 (2,2,−4), A4 (0,6,2) |
|||
10 |
A3 |
(4,0,1), A5 (6,6,−1) |
25 |
A3 |
(5,3,4), A5 (1,7,6) |
|
11 |
A1 |
(0,4,−3), A4 |
(6,1,3) |
26 |
A1 |
(2,−5,5), A4 (5,4,−1) |
12 |
A2 (3,−2,0), A5 (9,7,−6) |
27 |
A2 (5,0,−3), A5 (−4,6,6) |
|||
13 |
A1 |
(2,−7,5), A3 |
(4,−1,3) |
28 |
A1 |
(1,−7,3), A3 (5,−1,1) |
14 |
A2 (3,−3,3), A4 |
(1,1,7) |
29 |
A2 (−1,3,−4), A4 (3,5,2) |
||
15 |
A3 |
(4,1,2), A5 (6,7,6) |
30 |
A3 |
(5,−1,3), A5 (1,3,5) |
Задача 17
В тетраэдре ABCD найти объем V, площадь S основания ABC, |
высоту H = DK и высоту |
||||
h = CL основания. |
|
|
|
|
|
N |
A |
B |
C |
|
D |
1 |
A(−1,2,5) |
B(0,4,7) |
C(5,16,12) |
|
D(0,4,22) |
2 |
A(2,−3,1) |
B(3,1,9) |
C(3,−3,2) |
|
D(4,1,19) |
3 |
A(3,−5,4) |
B(4,−3,2) |
C(9,9,−3) |
|
D(9,1,7) |
4 |
A(4,−2,5) |
B(5,2,−3) |
C(5,−6,11) |
|
D(6,−2,21) |
5 |
A(−1,−3,−5) |
B(0,−1,−3) |
C(8,11,23) |
|
D(9,13,40) |
6 |
A(2,1,−3) |
B(3,5,5) |
C(6,−7,−13) |
|
D(2,17,−2) |
7 |
A(2,−3,1) |
B(4,1,5) |
C(5,−1,17) |
|
D(4,−3,−15) |
8 |
A(2,−1,3) |
B(3,3,11) |
C(5,−5,−1) |
|
D(6,−1,16) |
9 |
A(−2,4,3) |
B(−1,6,5) |
C(4,24,−5) |
|
D(−2,26,8) |
10 |
A(2,−3,1) |
B(3,1,−7) |
C(4,−3,−1) |
|
D(4,1,10) |
11 |
A(3,2,−1) |
B(4,0,1) |
C(4,−4,−9) |
|
D(4,−6,23) |
12 |
A(4,2,3) |
B(5,0,1) |
C(16,−26,−11) |
|
D(11,−14,24) |
13 |
A(3,−1,2) |
B(4,−5,−6) |
C(5,7,14) |
|
D(5,−1,9) |
14 |
A(3,5,−1) |
B(4,1,−9) |
C(7,13,9) |
|
D(3,3,0) |
15 |
A(−1,2,0) |
B(0,0,−2) |
C(8,−12,−28) |
|
D(9,−14,−15) |
16 |
A(2,5,9) |
B(3,1,1) |
C(5,9,13) |
|
D(6,5,32) |
|
|
|
|
|
|
17 |
A(2,3,5) |
B(3,1,1) |
C(5,1,−11) |
|
D(6,−1,17) |
18 |
A(4,3,4) |
B(5,−1,12) |
C(6,3,6) |
|
D(6,−1,4) |
19 |
A(2,3,4) |
B(3,1,2) |
C(5,−7,8) |
|
D(6,−9,−9) |
20 |
A(2,6,−1) |
B(3,2,7) |
C(3,10,−7) |
|
D(4,6,28) |
21 |
A(2,3,−6) |
B(3,6,−8) |
C(4,−4,10) |
|
D(4,0,15) |
22 |
A(−1,3,2) |
B(0,−1,10) |
C(3,11,−8) |
|
D(2,3,8) |
23 |
A(3,1,5) |
B(4,3,3) |
C(15,29,−9) |
|
D(3,−2,5) |
24 |
A(−1,4,3) |
B(0,8,−5) |
C(2,0,7) |
|
D(3,4,26) |
25 |
A(3,−1,2) |
B(4,1,0) |
C(12,13,−26) |
|
D(−1,−1,0) |
26 |
A(2,−3,2) |
B(3,1,−6) |
C(4,−3,0) |
|
D(4,1,2) |
27 |
A(3,−4,8) |
B(4,−2,6) |
C(6,−2,−8) |
|
D(7,0,5) |
28 |
A(3,−2,−1) |
B(4,2,9) |
C(4,−6,5) |
|
D(5,−2,24) |
29 |
A(−3,1,2) |
B(−2,3,0) |
C(0,11,6) |
|
D(2,−3,2) |
30 |
A(1,5,−3) |
B(2,9,−11) |
C(5,−3,7) |
|
D(0,3,−3) |
Задача 18
Записать формулы преобразования АСК, если дано новое начало O* |
и базисные векторы |
|||||||
r |
|
r |
* . Найти новые координаты точки M . |
|
|
|
|
|
e * |
, e |
|
|
|
|
|||
1 |
2 |
r |
|
r |
|
|
||
N |
|
|
O* |
|
|
M |
||
|
|
e1* |
|
e2* |
|
|||
1 |
|
|
(2,-1) |
(1,-2) |
|
(3,5) |
|
(9,7) |
2 |
|
|
(2,0) |
(3,0) |
|
(1,-2) |
|
(12,-2) |
3 |
|
|
(2,1) |
(3,-2) |
|
(4,-1) |
|
(15,-6) |
4 |
|
|
(3,1) |
(2,0) |
|
(1,3) |
|
(7,-5) |
5 |
|
|
(5,4) |
(1,0) |
|
(0,1) |
|
(9,5) |
6 |
|
|
(3,-4) |
(1,-1) |
|
(3,0) |
|
(5,-3) |
7 |
|
|
(3,0) |
(1,-1) |
|
(0,1) |
|
(3,1) |
8 |
|
|
(-1,1) |
(3,-1) |
|
(0,3) |
|
(2,-6) |
9 |
|
|
(3,-1) |
(0,-3) |
|
(2,0) |
|
(1,-4) |
10 |
|
|
(-2,2) |
(1,0) |
|
(0,-1) |
|
(-1,1) |
11 |
|
|
(3,-1) |
(7,1) |
|
(3,-1) |
|
(18,4) |
12 |
|
|
(3,4) |
(2,0) |
|
(-3,2) |
|
(0,1) |
13 |
|
|
(3,-1) |
(0,-1) |
|
(3,1) |
|
(0,0) |
14 |
|
|
(3,4) |
(-1,5) |
|
(-4,0) |
|
(0,-1) |
15 |
|
|
(1,-3) |
(3,0) |
|
(0,1) |
|
(-2,0) |
16 |
|
|
(0,0) |
(3,-3) |
|
(-2,2) |
|
(1,-1) |
17 |
|
|
(3,-5) |
(1,0) |
|
(0,1) |
|
(0,0) |
18 |
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(-1,2) |
(3,4) |
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(0,2) |
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(-4,0) |
19 |
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(3,0) |
(3,3) |
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(-1,3) |
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(16,9) |
20 |
|
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(1,2) |
(-1,-1) |
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(3,1) |
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(-2,-1) |
21 |
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(3,-1) |
(0,3) |
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(3,0) |
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(3,-1) |
22 |
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(-1,1) |
(3,4) |
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(0,-5) |
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(2,0) |
23 |
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(0,-1) |
(7,3) |
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(3,0) |
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(1,2) |
24 |
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(3,1) |
(1,3) |
|
(-1,-3) |
|
(3,1) |
25 |
|
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(4,-10 |
(2,0) |
|
(0,-2) |
|
(0,1) |
26 |
|
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(3,2) |
(2,3) |
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(1,-1) |
|
(2,0) |
27 |
|
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(3,0) |
(0,3) |
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(-3,0) |
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(0,0) |
28 |
|
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(3,4) |
(2,1) |
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(-1,2) |
|
(3,4) |
29 |
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(3,-1) |
(2,3) |
|
(-1,1) |
|
(8,9) |
30 |
|
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(-1,1) |
(3,0) |
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(0,-1) |
|
(8,1) |
Задача 19
Записать формулы преобразования ДСК на плоскости при новом начале O* и угле поворота α. Найти старые координаты точки M .
N |
O* |
α |
M * |
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N |
O* |
α |
M * |
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1 |
(3,-2) |
0o |
(5,-1) |
|
16 |
(3,-2) |
330o |
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(0,2 |
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3 ) |
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2 |
(-2,1) |
30o |
(0,1) |
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17 |
(4,-5) |
0o |
(1,3) |
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3 |
(0,0) |
45o |
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18 |
(1,-1) |
30o |
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(0, |
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2 ) |
(-2 |
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3 ,2) |
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4 |
(1,0) |
60o |
(2,-8) |
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19 |
(-1,3) |
45o |
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( |
2 , 2 ) |
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5 |
(2,3) |
90o |
(5,7) |
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20 |
(0,-1) |
60o |
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( |
3 ,1) |
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6 |
(1,0) |
120o |
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21 |
(1,2) |
90o |
(1,-2) |
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( 3 ,-1) |
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7 |
(3,-2) |
135o |
(1,-1) |
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22 |
(3,-2) |
120o |
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(3, |
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3 ) |
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8 |
(1,-2) |
150o |
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23 |
(-1,1) |
135o |
(1,1) |
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(2 |
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|
3 ,0) |
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9 |
(4,-3) |
180o |
(3,5) |
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24 |
(0,1) |
150o |
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(-2 |
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|
3 ,2) |
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10 |
(2,-3) |
210o |
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25 |
(0,0) |
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|
180o |
(1,1) |
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(4 |
3 ,2) |
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11 |
(0,1) |
225o |
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26 |
|
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|
210o |
(2,0) |
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||
( |
2 ,0) |
|
( 3 ,- 3 ) |
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12 |
(3,1) |
240o |
|
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|
27 |
(1,1) |
|
|
|
|
225o |
|
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||
(2 |
3 ,2) |
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|
( 2 ,0) |
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13 |
(2,1) |
270o |
(2,0) |
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|
|
28 |
|
|
|
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|
|
|
240o |
(2,0) |
|
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|||||
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(1, 3 ) |
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14 |
(3,0) |
300o |
|
|
|
|
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|
|
29 |
(-3,1) |
|
|
|
270o |
(3,0) |
|
|
|||||
(2, 2 3 ) |
|
|
|
||||||||||||||||||||
15 |
(4,2) |
315o |
(1,1) |
|
|
|
30 |
(0,0) |
|
|
|
|
300o |
|
|
|
|
|
|||||
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|
(2,2 3 ) |
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Задача 20
|
|
|
|
r |
|
В треугольнике с данными вершинами найти координаты векторов: высоты AK , медианы |
|||||
r |
|
r |
|
|
|
AL, биссектрисы AM . |
|
|
|||
|
|
|
|
|
|
N |
A |
|
B |
C |
|
1 |
(0,1,2) |
|
(1,3,4) |
(1,5,10) |
|
2 |
(3,-2,1) |
|
(4,0,3) |
(5,0,2) |
|
3 |
(-2,1,3) |
|
(0,6,17) |
(-1,,5) |
|
4 |
(3,0,-2) |
|
(3,3,2) |
(5,5,12) |
|
5 |
(-1,2,0) |
|
(3,10,8) |
(1,7,14) |
|
6 |
(0,1,3) |
|
(1,-1,5) |
(1,-3,11) |
|
7 |
(3,-2,1) |
|
(4,0,-1) |
(7,6,-7) |
|
8 |
(4,0,-1) |
|
(3,-2,-3) |
(6,3,5) |
|
9 |
(2,-1,0) |
|
(4,-4,6) |
(2,-4,-4) |
|
10 |
(4,5,11) |
|
(4,2,7) |
(5,1,3) |
|
11 |
(3,-5,0) |
|
(4,-1,8) |
(1,1,9) |
|
12 |
(4,-3,2) |
|
(0,5,10) |
(4,2,-10) |
|
13 |
(6,-2,1) |
|
(6,-5,-3) |
(4,3,15) |
|
14 |
(2,0,-3) |
|
(4,6,6) |
(2,5,9) |
|
15 |
(4,0,-2) |
|
(6,3,4) |
(6,6,7) |
|
16 |
(5,-3,0) |
|
(1,-11,8) |
(7,2,14) |
|
17 |
(6,-1,3) |
|
(7,1,5) |
(4,2,-3) |
|
18 |
(-1,3,5) |
|
(1,6,-1) |
(-1,6,9) |
|
19 |
(2,-2,3) |
|
(2,1,-1) |
(1,2,-5) |
|
20 |
(4,0,-6) |
|
(3,4,2) |
(2,6,3) |
|
21 |
(4,0,-1) |
|
(6,6,8) |
(4,5,-13) |
|
22 |
(3,-2,6) |
|
(3,3,-6) |
(5,3,-8) |
|
23 |
(0,-1,2) |
|
(2,4,-12) |
(1,1,0) |
|
24 |
(-3,0,-2) |
|
(-2,2,0) |
(-1,3,-8) |
|
25 |
(1,-2,4) |
|
(3,1,10) |
(1,1,0) |
|
26 |
(3,-1,0) |
|
(3,2,-4) |
(4,3,8) |
|
27 |
(-4,5,1) |
|
(-3,1,9) |
(-2,-1,10) |
|
28 |
(0,-2,-5) |
|
(2,1,1) |
(0,3,7) |
|
29 |
(0,-4,1) |
|
(1,-2,3) |
(1,0,-7) |
|
30 |
(2,-3,5) |
|
(3,1,-3 |
(4,3,-4) |
|