Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:

d12mat101_9

.pdf
Скачиваний:
5
Добавлен:
24.03.2015
Размер:
1.99 Mб
Скачать

ȿɣɛɞɨɩɬɭɣɲɠɬɥɛɺ ɫɛɜɩɭɛ ʌ 1

ɪɩ ɇȻɍɀɇȻɍɃɅɀ

22 ɧɛɺ 2012 ɞɩɟɛ

10 ɥɦɛɬɬ

Ƚɛɫɣɛɨɭ 9 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

ɋɛɤɩɨ Ⱦɩɫɩɟ (ɨɛɬɠɦɻɨɨɶɤ ɪɮɨɥɭ) ɓɥɩɦɛ Ʌɦɛɬɬ

ɏɛɧɣɦɣɺ

Ƀɧɺ

ɉɭɲɠɬɭɝɩ

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 9 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ) Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 2

Ƀɨɬɭɫɮɥɱɣɺ ɪɩ ɝɶɪɩɦɨɠɨɣɹ ɫɛɜɩɭɶ

Ɉɛ ɝɶɪɩɦɨɠɨɣɠ ɸɥɢɛɧɠɨɛɱɣɩɨɨɩɤ ɫɛɜɩɭɶ ɪɩ ɧɛɭɠɧɛɭɣɥɠ ɟɛɻɭɬɺ 4 ɲɛɬɛ (240 ɧɣɨ). ɋɛɜɩɭɛ ɬɩɬɭɩɣɭ ɣɢ ɟɝɮɰ ɲɛɬɭɠɤ ɣ ɬɩɟɠɫɡɣɭ 20 ɢɛɟɛɨɣɤ.

ɒɛɬɭɷ 1 ɬɩɟɠɫɡɣɭ 14 ɢɛɟɛɨɣɤ ɬ ɥɫɛɭɥɣɧ ɩɭɝɠɭɩɧ (Ƚ1–Ƚ14) ɜɛɢɩɝɩɞɩ ɮɫɩɝɨɺ ɪɩ ɧɛɭɠɫɣɛɦɮ ɥɮɫɬɛ ɧɛɭɠɧɛɭɣɥɣ. ɂɛɟɛɨɣɺ ɲɛɬɭɣ 1 ɬɲɣɭɛɹɭɬɺ ɝɶɪɩɦɨɠɨɨɶɧɣ, ɠɬɦɣ ɸɥɢɛɧɠɨɮɠɧɶɤ ɟɛɦ ɝɠɫɨɶɤ ɩɭɝɠɭ ɝ ɝɣɟɠ ɱɠɦɩɞɩ ɲɣɬɦɛ ɣɦɣ ɥɩɨɠɲɨɩɤ ɟɠɬɺɭɣɲɨɩɤ ɟɫɩɜɣ.

ɒɛɬɭɷ 2 ɬɩɟɠɫɡɣɭ 6 ɜɩɦɠɠ ɬɦɩɡɨɶɰ ɢɛɟɛɨɣɤ (Ɍ1–Ɍ6) ɪɩ ɧɛɭɠɫɣɛɦɮ ɥɮɫɬɛ ɧɛɭɠɧɛɭɣɥɣ. Ɋɫɣ ɣɰ ɝɶɪɩɦɨɠɨɣɣ ɨɛɟɩ ɢɛɪɣɬɛɭɷ ɪɩɦɨɩɠ ɫɠɳɠɨɣɠ ɣ ɩɭɝɠɭ.

Ɍɩɝɠɭɮɠɧ ɟɦɺ ɸɥɩɨɩɧɣɣ ɝɫɠɧɠɨɣ ɪɫɩɪɮɬɥɛɭɷ ɢɛɟɛɨɣɠ, ɥɩɭɩɫɩɠ ɨɠ ɮɟɛɠɭɬɺ ɝɶɪɩɦɨɣɭɷ ɬɫɛɢɮ, ɣ ɪɠɫɠɰɩɟɣɭɷ ɥ ɬɦɠɟɮɹɴɠɧɮ. Ʌ ɝɶɪɩɦɨɠɨɣɹ ɪɫɩɪɮɴɠɨɨɶɰ ɢɛɟɛɨɣɤ ɧɩɡɨɩ ɝɠɫɨɮɭɷɬɺ, ɠɬɦɣ ɮ Ƚɛɬ ɩɬɭɛɨɠɭɬɺ ɝɫɠɧɺ.

Ɂɠɦɛɠɧ ɮɬɪɠɰɛ!

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 9 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 3

ɒɛɬɭɷ 1

ɉɭɝɠɭɩɧ ɨɛ ɢɛɟɛɨɣɺ Ƚ1–Ƚ14 ɟɩɦɡɨɩ ɜɶɭɷ ɱɠɦɩɠ ɲɣɬɦɩ ɣɦɣ ɥɩɨɠɲɨɛɺ ɟɠɬɺɭɣɲɨɛɺ ɟɫɩɜɷ. ɉɭɝɠɭ ɬɦɠɟɮɠɭ ɢɛɪɣɬɛɭɷ ɝ ɜɦɛɨɥ ɩɭɝɠɭɩɝ ʌ 1 ɬɪɫɛɝɛ ɩɭ ɨɩɧɠɫɛ ɝɶɪɩɦɨɺɠɧɩɞɩ ɢɛɟɛɨɣɺ, ɨɛɲɣɨɛɺ ɬ ɪɠɫɝɩɤ ɥɦɠɭɩɲɥɣ. Ʌɛɡɟɮɹ ɱɣɯɫɮ, ɢɨɛɥ ɧɣɨɮɬ ɣ ɢɛɪɺɭɮɹ ɪɣɳɣɭɠ ɝ ɩɭɟɠɦɷɨɩɤ ɥɦɠɭɩɲɥɠ ɝ ɬɩɩɭɝɠɭɬɭɝɣɣ ɬ ɪɫɣɝɠɟɻɨɨɶɧɣ ɝ ɜɦɛɨɥɠ ɩɜɫɛɢɱɛɧɣ. ɀɟɣɨɣɱɶ ɣɢɧɠɫɠɨɣɤ ɪɣɬɛɭɷ ɨɠ ɨɮɡɨɩ.

B1

ɍɛɥɬɣɬɭ ɢɛ ɧɠɬɺɱ ɪɫɩɠɰɛɦ 6000 ɥɧ. Ɍɭɩɣɧɩɬɭɷ 1 ɦɣɭɫɛ ɜɠɨɢɣɨɛ

 

22,5 ɫɮɜɦɺ. Ɍɫɠɟɨɣɤ ɫɛɬɰɩɟ ɜɠɨɢɣɨɛ ɨɛ 100 ɥɧ ɬɩɬɭɛɝɦɺɠɭ 8 ɦ. Ɍɥɩɦɷɥɩ

 

ɫɮɜɦɠɤ ɪɩɭɫɛɭɣɦ ɭɛɥɬɣɬɭ ɨɛ ɜɠɨɢɣɨ ɢɛ ɸɭɩɭ ɧɠɬɺɱ?

 

ɉɭɝɠɭ:

B2

Ɉɛ ɟɣɛɞɫɛɧɧɠ ɪɩɥɛɢɛɨ ɬɫɠɟɨɣɤ ɜɛɦɦ ɮɲɛɬɭɨɣɥɩɝ 8 ɬɭɫɛɨ ɝ ɭɠɬɭɣ-

 

ɫɩɝɛɨɣɣ ɮɲɛɴɣɰɬɺ 4-ɞɩ ɥɦɛɬɬɛ ɪɩ ɧɛɭɠɧɛɭɣɥɠ ɝ 2007 ɞɩɟɮ (ɪɩ 1000-

 

ɜɛɦɦɷɨɩɤ ɳɥɛɦɠ).

Ɋɩ ɟɛɨɨɶɧ ɟɣɛɞɫɛɧɧɶ ɨɛɤɟɣɭɠ ɲɣɬɦɩ ɬɭɫɛɨ, ɝ ɥɩɭɩɫɶɰ ɬɫɠɟɨɣɤ ɜɛɦɦ ɝɶɳɠ, ɲɠɧ ɝ Ɍɦɩɝɛɥɣɣ.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 9 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 4

B3

Ɉɛɤɟɣɭɠ ɪɦɩɴɛɟɷ ɭɫɛɪɠɱɣɣ, ɣɢɩɜɫɛɡɠɨɨɩɤ ɨɛ

 

 

 

ɥɦɠɭɲɛɭɩɤ ɜɮɧɛɞɠ ɬ ɫɛɢɧɠɫɩɧ ɥɦɠɭɥɣ 1 ɬɧ u 1 ɬɧ

 

 

 

(ɬɧ. ɫɣɬ.). ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɥɝɛɟɫɛɭɨɶɰ

 

 

 

ɬɛɨɭɣɧɠɭɫɛɰ.

 

 

 

 

 

 

 

ɉɭɝɠɭ:

 

 

 

 

 

 

B4

Ƚ ɬɫɠɟɨɠɧ ɞɫɛɡɟɛɨɣɨ Ȼ. ɝ ɟɨɠɝɨɩɠ ɝɫɠɧɺ ɫɛɬɰɩɟɮɠɭ 110 ɥȽɭ·ɲ

 

ɸɦɠɥɭɫɩɸɨɠɫɞɣɣ ɝ ɧɠɬɺɱ, ɛ ɝ ɨɩɲɨɩɠ ɝɫɠɧɺ — 155 ɥȽɭ·ɲ ɸɦɠɥɭɫɩ-

 

ɸɨɠɫɞɣɣ. ɋɛɨɷɳɠ ɮ Ȼ. ɝ ɥɝɛɫɭɣɫɠ ɜɶɦ ɮɬɭɛɨɩɝɦɠɨ ɩɟɨɩɭɛɫɣɯɨɶɤ

 

ɬɲɻɭɲɣɥ, ɣ

ɝɬɹ

ɸɦɠɥɭɫɩɸɨɠɫɞɣɹ

ɩɨ

ɩɪɦɛɲɣɝɛɦ

ɪɩ

ɭɛɫɣɯɮ

 

2,6 ɫɮɜ. ɢɛ ɥȽɭ·ɲ. Ⱦɩɟ ɨɛɢɛɟ Ȼ. ɮɬɭɛɨɩɝɣɦ ɟɝɮɰɭɛɫɣɯɨɶɤ ɬɲeɭɲɣɥ, ɪɫɣ

 

ɸɭɩɧ ɟɨɠɝɨɩɤ

ɫɛɬɰɩɟ ɸɦɠɥɭɫɩɸɨɠɫɞɣɣ

ɩɪɦɛɲɣɝɛɠɭɬɺ

ɪɩ

ɭɛɫɣɯɮ

 

2,6 ɫɮɜ. ɢɛ ɥȽɭ·ɲ,

ɛ ɨɩɲɨɩɤ ɫɛɬɰɩɟ ɩɪɦɛɲɣɝɛɠɭɬɺ

ɪɩ

ɭɛɫɣɯɮ

 

0,8 ɫɮɜ. ɢɛ ɥȽɭ·ɲ.

 

 

 

 

 

 

Ƚ ɭɠɲɠɨɣɠ 12 ɧɠɬɺɱɠɝ ɫɠɡɣɧ ɪɩɭɫɠɜɦɠɨɣɺ ɣ ɭɛɫɣɯɶ ɩɪɦɛɭɶ

 

ɸɦɠɥɭɫɩɸɨɠɫɞɣɣ ɨɠ ɧɠɨɺɦɣɬɷ. Ɉɛ ɬɥɩɦɷɥɩ ɜɩɦɷɳɠ ɢɛɪɦɛɭɣɦ ɜɶ Ȼ. ɢɛ

 

ɸɭɩɭ ɪɠɫɣɩɟ, ɠɬɦɣ ɜɶ ɨɠ ɪɩɧɠɨɺɦɬɺ ɬɲɻɭɲɣɥ? ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɫɮɜɦɺɰ.

 

ɉɭɝɠɭ:

 

 

 

 

 

 

B5

Ɉɛɤɟɣɭɠ ɥɩɫɠɨɷ ɮɫɛɝɨɠɨɣɺ: 54 5x

7.

 

 

 

 

ɉɭɝɠɭ:

 

 

 

 

 

 

B6

ɒɠɭɶɫɠɰɮɞɩɦɷɨɣɥ

ABCD ɝɪɣɬɛɨ ɝ ɩɥɫɮɡɨɩɬɭɷ. Ɏɞɩɦ ABC ɫɛɝɠɨ 76q,

ɮɞɩɦCAD ɫɛɝɠɨ52q. Ɉɛɤɟɣɭɠ ɮɞɩɦ ABD. ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɞɫɛɟɮɬɛɰ.

ɉɭɝɠɭ: B7 Ɉɛɤɟɣɭɠ ɢɨɛɲɠɨɣɠ ɝɶɫɛɡɠɨɣɺ (1812 112) : 192.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 9 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 5

B8 Ɉɛ ɫɣɬɮɨɥɠ ɣɢɩɜɫɛɡɻɨ ɞɫɛɯɣɥ ɯɮɨɥɱɣɣ

y f (x), ɩɪɫɠɟɠɦɻɨɨɩɤ ɨɛ

ɣɨɭɠɫɝɛɦɠ ( 4; 9). Ɉɛɤɟɣɭɠ ɥɩɦɣɲɠɬɭɝɩ ɭɩɲɠɥ, ɝ ɥɩɭɩɫɶɰ ɥɛɬɛɭɠɦɷɨɛɺ ɥ

ɞɫɛɯɣɥɮ ɯɮɨɥɱɣɣ ɪɛɫɛɦɦɠɦɷɨɛ ɪɫɺɧɩɤ y

13.

ɉɭɝɠɭ:

B9 Ƚ

ɪɫɺɧɩɮɞɩɦɷɨɩɧ

ɪɛɫɛɦɦɠɦɠɪɣɪɠɟɠ ABCDA B C D ɣɢɝɠɬɭɨɩ, ɲɭɩ

 

 

1

1

1

1

BB1

4, AB 18, AD

12. Ɉɛɤɟɣɭɠ ɟɦɣɨɮ ɟɣɛɞɩɨɛɦɣ DB1.

ɉɭɝɠɭ:

B10 Ƚ ɬɜɩɫɨɣɥɠ ɜɣɦɠɭɩɝ ɪɩ ɜɣɩɦɩɞɣɣ ɝɬɠɞɩ 55 ɜɣɦɠɭɩɝ, ɝ 11 ɣɢ ɨɣɰ ɝɬɭɫɠɲɛɠɭɬɺ ɝɩɪɫɩɬ ɪɩ ɢɩɩɦɩɞɣɣ. Ɉɛɤɟɣɭɠ ɝɠɫɩɺɭɨɩɬɭɷ ɭɩɞɩ, ɲɭɩ ɝ ɬɦɮɲɛɤɨɩ ɝɶɜɫɛɨɨɩɧ ɨɛ ɸɥɢɛɧɠɨɠ ɜɣɦɠɭɠ ɳɥɩɦɷɨɣɥɮ ɨɠ ɟɩɬɭɛɨɠɭɬɺ ɝɩɪɫɩɬ ɪɩ ɢɩɩɦɩɞɣɣ.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 9 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 6

B11 Ɉɛɤɟɣɭɠ ɪɦɩɴɛɟɷ ɪɩɝɠɫɰɨɩɬɭɣ ɧɨɩɞɩɞɫɛɨɨɣɥɛ, ɣɢɩɜɫɛɡɠɨɨɩɞɩ ɨɛ ɫɣɬɮɨɥɠ. Ƚɬɠ ɟɝɮɞɫɛɨɨɶɠ ɮɞɦɶ ɧɨɩɞɩɞɫɛɨɨɣɥɛ ɪɫɺɧɶɠ.

ɉɭɝɠɭ:

B12 Ɍɥɩɫɩɬɭɷ ɛɝɭɩɧɩɜɣɦɺ, ɫɛɢɞɩɨɺɹɴɠɞɩɬɺ ɬ ɧɠɬɭɛ ɬɭɛɫɭɛ ɪɩ ɪɫɺɧɩɦɣɨɠɤɨɩɧɮ ɩɭɫɠɢɥɮ ɪɮɭɣ ɟɦɣɨɩɤ l ɥɧ ɬ ɪɩɬɭɩɺɨɨɶɧ ɮɬɥɩɫɠɨɣɠɧ

a ɤɦ/ɱ2, ɝɶɲɣɬɦɺɠɭɬɺ ɪɩ ɯɩɫɧɮɦɠ Ȟ 2la. ɉɪɫɠɟɠɦɣɭɠ ɨɛɣɧɠɨɷɳɠɠ ɮɬɥɩɫɠɨɣɠ, ɬ ɥɩɭɩɫɶɧ ɟɩɦɡɠɨ ɟɝɣɞɛɭɷɬɺ ɛɝɭɩɧɩɜɣɦɷ, ɲɭɩɜɶ, ɪɫɩɠɰɛɝ 0, 8 ɥɣɦɩɧɠɭɫɛ, ɪɫɣɩɜɫɠɬɭɣ ɬɥɩɫɩɬɭɷ ɨɠ ɧɠɨɠɠ 60 ɥɧ/ɲ. ɉɭɝɠɭ ɝɶɫɛɢɣɭɠ

ɝ ɤɦ/ɱ2.

ɉɭɝɠɭ:

B13 ɇɩɭɩɫɨɛɺ ɦɩɟɥɛ ɪɫɩɳɦɛ ɪɫɩɭɣɝ ɭɠɲɠɨɣɺ ɫɠɥɣ 143 ɥɧ ɣ ɝɠɫɨɮɦɛɬɷ ɝ ɪɮɨɥɭ ɩɭɪɫɛɝɦɠɨɣɺ, ɢɛɭɫɛɭɣɝ ɨɛ ɩɜɫɛɭɨɶɤ ɪɮɭɷ ɨɛ 2 ɲɛɬɛ ɧɠɨɷɳɠ. Ɉɛɤɟɣɭɠ ɬɥɩɫɩɬɭɷ ɭɠɲɠɨɣɺ, ɠɬɦɣ ɬɥɩɫɩɬɭɷ ɦɩɟɥɣ ɝ ɨɠɪɩɟɝɣɡɨɩɤ ɝɩɟɠ ɫɛɝɨɛ 12 ɥɧ/ɲ. ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɥɧ/ɲ.

ɉɭɝɠɭ:

B14 Ɉɛɤɟɣɭɠ ɭɩɲɥɮ ɧɣɨɣɧɮɧɛ ɯɮɨɥɱɣɣ y

x2 10x 32.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 9 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

 

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 7

ȿɣɛɞɨɩɬɭɣɲɠɬɥɛɺ ɫɛɜɩɭɛ ʌ 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ɪɩ ɇȻɍɀɇȻɍɃɅɀ

 

 

 

 

 

 

 

ɒɛɬɭɷ 2

 

 

 

 

 

 

22 ɧɛɺ 2012 ɞɩɟɛ

ȿɦɺ ɢɛɪɣɬɣ ɫɠɳɠɨɣɤ ɣ ɩɭɝɠɭɩɝ ɨɛ ɢɛɟɛɨɣɺ C1–C6 ɣɬɪɩɦɷɢɮɤɭɠ

 

ɜɦɛɨɥ ɩɭɝɠɭɩɝ ʌ 2. ɂɛɪɣɳɣɭɠ ɬɨɛɲɛɦɛ ɨɩɧɠɫ ɝɶɪɩɦɨɺɠɧɩɞɩ

10 ɥɦɛɬɬ

ɢɛɟɛɨɣɺ, ɛ ɢɛɭɠɧ ɪɩɦɨɩɠ ɩɜɩɬɨɩɝɛɨɨɩɠ ɫɠɳɠɨɣɠ ɣ ɩɭɝɠɭ.

 

 

 

C1

ɛ) ɋɠɳɣɭɠ ɮɫɛɝɨɠɨɣɠ sin2x 2

 

3 cos2x 6sinx 6

3 cosx

0.

 

 

 

 

ɜ) Ɉɛɤɟɣɭɠ ɝɬɠ ɥɩɫɨɣ ɸɭɩɞɩ ɮɫɛɝɨɠɨɣɺ, ɪɫɣɨɛɟɦɠɡɛɴɣɠ ɪɫɩɧɠɡɮɭɥɮ

Ƚɛɫɣɛɨɭ 10 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

 

ªʌ;

2ʌº.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

«

»

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

¬2

¼

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C2

Ƚ ɪɫɛɝɣɦɷɨɩɤ ɲɠɭɶɫɻɰɮɞɩɦɷɨɩɤ ɪɣɫɛɧɣɟɠ SABCD ɝɬɠ ɫɻɜɫɛ ɫɛɝɨɶ 4.

 

 

ɍɩɲɥɣ M ɣ

K – ɬɠɫɠɟɣɨɶ

ɜɩɥɩɝɶɰ

ɫɻɜɠɫ SB ɣ SC ɬɩɩɭɝɠɭɬɭɝɠɨɨɩ.

 

 

Ɉɛɤɟɣɭɠ ɮɞɩɦ ɧɠɡɟɮ ɪɦɩɬɥɩɬɭɺɧɣ AMK ɣ ADS.

 

 

 

 

 

C3

ɋɠɳɣɭɠ ɬɣɬɭɠɧɮ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

­

(x

2

5, 6x 7, 84)(x 2, 5) t 0,

 

 

 

 

 

 

 

°

 

 

 

 

 

 

 

 

®

 

1

 

 

 

1

 

d 5.

 

 

 

 

 

 

 

 

 

 

°

 

 

x

2

 

 

 

 

 

 

 

 

 

 

¯

x 3

 

 

 

 

 

 

 

 

 

 

C4

Ɋɦɩɴɛɟɷ

ɭɫɛɪɠɱɣɣ

ABCD

 

ɫɛɝɨɛ

270.

 

ȿɣɛɞɩɨɛɦɣ

AB ɣ

CD

 

 

ɪɠɫɠɬɠɥɛɹɭɬɺ ɝ ɭɩɲɥɠ O. ɉɭɫɠɢɥɣ,

ɬɩɠɟɣɨɺɹɴɣɠ

ɬɠɫɠɟɣɨɮ

P

ɋɛɤɩɨ

 

ɩɬɨɩɝɛɨɣɺ

AD ɬ ɝɠɫɳɣɨɛɧɣ

B ɣ C,

ɪɠɫɠɬɠɥɛɹɭɬɺ

ɬ ɟɣɛɞɩɨɛɦɺɧɣ

Ⱦɩɫɩɟ (ɨɛɬɠɦɻɨɨɶɤ ɪɮɨɥɭ)

 

ɭɫɛɪɠɱɣɣ ɝ ɭɩɲɥɛɰ M ɣ N. Ɉɛɤɟɣɭɠ ɪɦɩɴɛɟɷ ɭɫɠɮɞɩɦɷɨɣɥɛ MON,

ɠɬɦɣ

ɓɥɩɦɛ

 

ɩɟɨɩ ɣɢ ɩɬɨɩɝɛɨɣɤ ɭɫɛɪɠɱɣɣ ɝɟɝɩɠ ɧɠɨɷɳɠ ɟɫɮɞɩɞɩ.

 

 

 

 

 

 

 

Ʌɦɛɬɬ

C5

Ɋɫɣ

ɥɛɥɣɰ

a ɮɫɛɝɨɠɨɣɠ

x2 2x 3 2a

x a 3 ɣɧɠɠɭ

ɫɩɝɨɩ

ɭɫɣ

 

 

ɥɩɫɨɺ?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C6

Ɍɮɧɧɛ ɪɺɭɣ ɨɛɣɧɠɨɷɳɣɰ ɨɛɭɮɫɛɦɷɨɶɰ ɟɠɦɣɭɠɦɠɤ ɨɛɭɮɫɛɦɷɨɩɞɩ ɲɣɬɦɛ

ɏɛɧɣɦɣɺ

 

ɫɛɝɨɛ 17, ɛ ɬɮɧɧɛ ɲɠɭɶɫɠɰ ɨɛɣɜɩɦɷɳɣɰ ɠɞɩ ɟɠɦɣɭɠɦɠɤ ɫɛɝɨɛ 427.

 

Ɉɛɤɟɣɭɠ ɲɣɬɦɩ.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ƀɧɺ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ɉɭɲɠɬɭɝɩ

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 10 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ) Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 2

Ƀɨɬɭɫɮɥɱɣɺ ɪɩ ɝɶɪɩɦɨɠɨɣɹ ɫɛɜɩɭɶ

Ɉɛ ɝɶɪɩɦɨɠɨɣɠ ɸɥɢɛɧɠɨɛɱɣɩɨɨɩɤ ɫɛɜɩɭɶ ɪɩ ɧɛɭɠɧɛɭɣɥɠ ɟɛɻɭɬɺ 4 ɲɛɬɛ (240 ɧɣɨ). ɋɛɜɩɭɛ ɬɩɬɭɩɣɭ ɣɢ ɟɝɮɰ ɲɛɬɭɠɤ ɣ ɬɩɟɠɫɡɣɭ 20 ɢɛɟɛɨɣɤ.

ɒɛɬɭɷ 1 ɬɩɟɠɫɡɣɭ 14 ɢɛɟɛɨɣɤ ɬ ɥɫɛɭɥɣɧ ɩɭɝɠɭɩɧ (Ƚ1–Ƚ14) ɜɛɢɩɝɩɞɩ ɮɫɩɝɨɺ ɪɩ ɧɛɭɠɫɣɛɦɮ ɥɮɫɬɛ ɧɛɭɠɧɛɭɣɥɣ. ɂɛɟɛɨɣɺ ɲɛɬɭɣ 1 ɬɲɣɭɛɹɭɬɺ ɝɶɪɩɦɨɠɨɨɶɧɣ, ɠɬɦɣ ɸɥɢɛɧɠɨɮɠɧɶɤ ɟɛɦ ɝɠɫɨɶɤ ɩɭɝɠɭ ɝ ɝɣɟɠ ɱɠɦɩɞɩ ɲɣɬɦɛ ɣɦɣ ɥɩɨɠɲɨɩɤ ɟɠɬɺɭɣɲɨɩɤ ɟɫɩɜɣ.

ɒɛɬɭɷ 2 ɬɩɟɠɫɡɣɭ 6 ɜɩɦɠɠ ɬɦɩɡɨɶɰ ɢɛɟɛɨɣɤ (Ɍ1–Ɍ6) ɪɩ ɧɛɭɠɫɣɛɦɮ ɥɮɫɬɛ ɧɛɭɠɧɛɭɣɥɣ. Ɋɫɣ ɣɰ ɝɶɪɩɦɨɠɨɣɣ ɨɛɟɩ ɢɛɪɣɬɛɭɷ ɪɩɦɨɩɠ ɫɠɳɠɨɣɠ ɣ ɩɭɝɠɭ.

Ɍɩɝɠɭɮɠɧ ɟɦɺ ɸɥɩɨɩɧɣɣ ɝɫɠɧɠɨɣ ɪɫɩɪɮɬɥɛɭɷ ɢɛɟɛɨɣɠ, ɥɩɭɩɫɩɠ ɨɠ ɮɟɛɠɭɬɺ ɝɶɪɩɦɨɣɭɷ ɬɫɛɢɮ, ɣ ɪɠɫɠɰɩɟɣɭɷ ɥ ɬɦɠɟɮɹɴɠɧɮ. Ʌ ɝɶɪɩɦɨɠɨɣɹ ɪɫɩɪɮɴɠɨɨɶɰ ɢɛɟɛɨɣɤ ɧɩɡɨɩ ɝɠɫɨɮɭɷɬɺ, ɠɬɦɣ ɮ Ƚɛɬ ɩɬɭɛɨɠɭɬɺ ɝɫɠɧɺ.

Ɂɠɦɛɠɧ ɮɬɪɠɰɛ!

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 10 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 3

ɒɛɬɭɷ 1

ɉɭɝɠɭɩɧ ɨɛ ɢɛɟɛɨɣɺ Ƚ1–Ƚ14 ɟɩɦɡɨɩ ɜɶɭɷ ɱɠɦɩɠ ɲɣɬɦɩ ɣɦɣ ɥɩɨɠɲɨɛɺ ɟɠɬɺɭɣɲɨɛɺ ɟɫɩɜɷ. ɉɭɝɠɭ ɬɦɠɟɮɠɭ ɢɛɪɣɬɛɭɷ ɝ ɜɦɛɨɥ ɩɭɝɠɭɩɝ ʌ 1 ɬɪɫɛɝɛ ɩɭ ɨɩɧɠɫɛ ɝɶɪɩɦɨɺɠɧɩɞɩ ɢɛɟɛɨɣɺ, ɨɛɲɣɨɛɺ ɬ ɪɠɫɝɩɤ ɥɦɠɭɩɲɥɣ. Ʌɛɡɟɮɹ ɱɣɯɫɮ, ɢɨɛɥ ɧɣɨɮɬ ɣ ɢɛɪɺɭɮɹ ɪɣɳɣɭɠ ɝ ɩɭɟɠɦɷɨɩɤ ɥɦɠɭɩɲɥɠ ɝ ɬɩɩɭɝɠɭɬɭɝɣɣ ɬ ɪɫɣɝɠɟɻɨɨɶɧɣ ɝ ɜɦɛɨɥɠ ɩɜɫɛɢɱɛɧɣ. ɀɟɣɨɣɱɶ ɣɢɧɠɫɠɨɣɤ ɪɣɬɛɭɷ ɨɠ ɨɮɡɨɩ.

B1 Ƚ ɥɝɛɫɭɣɫɠ, ɞɟɠ ɪɫɩɡɣɝɛɠɭ Ȼ., ɮɬɭɛɨɩɝɦɠɨ ɪɫɣɜɩɫ ɮɲɻɭɛ ɫɛɬɰɩɟɛ ɰɩɦɩɟɨɩɤ ɝɩɟɶ (ɬɲɻɭɲɣɥ). 1 ɟɠɥɛɜɫɺ ɬɲɻɭɲɣɥ ɪɩɥɛɢɶɝɛɦ ɫɛɬɰɩɟ 75 ɥɮɜ.ɧ. ɝɩɟɶ, ɛ 1 ɺɨɝɛɫɺ — 83 ɥɮɜ.ɧ. Ʌɛɥɮɹ ɬɮɧɧɮ ɟɩɦɡɠɨ ɢɛɪɦɛɭɣɭɷ Ȼ. ɢɛ ɰɩɦɩɟɨɮɹ ɝɩɟɮ ɢɛ ɟɠɥɛɜɫɷ, ɠɬɦɣ ɱɠɨɛ ɢɛ ɩɟɣɨ ɥɮɜ.ɧ. ɰɩɦɩɟɨɩɤ ɝɩɟɶ ɬɩɬɭɛɝɦɺɠɭ 26 ɫ. 50 ɥɩɪ? ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɫɮɜɦɺɰ.

ɉɭɝɠɭ:

B2 Ɉɛ ɟɣɛɞɫɛɧɧɠ ɪɩɥɛɢɛɨ ɬɫɠɟɨɣɤ ɜɛɦɦ ɮɲɛɬɭɨɣɥɩɝ 10 ɬɭɫɛɨ ɝ ɭɠɬɭɣɫɩɝɛɨɣɣ ɮɲɛɴɣɰɬɺ 8-ɞɩ ɥɦɛɬɬɛ ɪɩ ɧɛɭɠɧɛɭɣɥɠ ɝ 2007 ɞɩɟɮ (ɪɩ 1000ɜɛɦɦɷɨɩɤ ɳɥɛɦɠ).

Ɋɩ ɟɛɨɨɶɧ ɟɣɛɞɫɛɧɧɶ ɨɛɤɟɣɭɠ ɬɫɠɟɨɣɤ ɜɛɦɦ ɮɲɛɬɭɨɣɥɩɝ ɣɢ ȼɩɦɞɛɫɣɣ.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 10 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 4

B3

Ɉɛɤɟɣɭɠ ɪɦɩɴɛɟɷ ɭɫɛɪɠɱɣɣ, ɣɢɩɜɫɛɡɠɨɨɩɤ ɨɛ

 

ɥɦɠɭɲɛɭɩɤ ɜɮɧɛɞɠ ɬ ɫɛɢɧɠɫɩɧ ɥɦɠɭɥɣ 1 ɬɧ u 1 ɬɧ

 

(ɬɧ. ɫɣɬ.). ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɥɝɛɟɫɛɭɨɶɰ

 

ɬɛɨɭɣɧɠɭɫɛɰ.

 

 

ɉɭɝɠɭ:

 

B4

Ɍɝɩɠɧɮ ɪɩɬɭɩɺɨɨɩɧɮ ɥɦɣɠɨɭɮ ɥɩɧɪɛɨɣɺ ɬɩɭɩɝɩɤ ɬɝɺɢɣ ɫɠɳɣɦɛ

 

ɪɫɠɟɩɬɭɛɝɣɭɷ ɨɛ ɝɶɜɩɫ ɩɟɨɮ ɣɢ ɬɥɣɟɩɥ. Ɇɣɜɩ ɬɥɣɟɥɮ 25% ɨɛ ɢɝɩɨɥɣ

 

ɛɜɩɨɠɨɭɛɧ ɟɫɮɞɣɰ ɬɩɭɩɝɶɰ ɥɩɧɪɛɨɣɤ ɝ ɬɝɩɠɧ ɫɠɞɣɩɨɠ, ɦɣɜɩ ɬɥɣɟɥɮ

 

15% ɨɛ ɢɝɩɨɥɣ ɝ ɟɫɮɞɣɠ ɫɠɞɣɩɨɶ, ɦɣɜɩ 20% ɨɛ ɮɬɦɮɞɣ ɧɩɜɣɦɷɨɩɞɩ

 

ɣɨɭɠɫɨɠɭɛ.

 

 

Ʌɦɣɠɨɭ ɪɩɬɧɩɭɫɠɦ ɫɛɬɪɠɲɛɭɥɮ ɬɝɩɣɰ ɢɝɩɨɥɩɝ ɣ ɝɶɺɬɨɣɦ, ɲɭɩ ɢɛ ɧɠɬɺɱ

 

ɩɨ ɪɩɭɫɛɭɣɦ 500 ɫɮɜɦɠɤ ɨɛ ɢɝɩɨɥɣ ɛɜɩɨɠɨɭɛɧ ɟɫɮɞɣɰ ɥɩɧɪɛɨɣɤ ɝ ɬɝɩɠɧ

 

ɫɠɞɣɩɨɠ, 300 ɫɮɜɦɠɤ ɨɛ ɢɝɩɨɥɣ ɝ ɟɫɮɞɣɠ ɫɠɞɣɩɨɶ ɣ 400 ɫɮɜɦɠɤ ɨɛ

 

ɧɩɜɣɦɷɨɶɤ ɣɨɭɠɫɨɠɭ. Ʌɦɣɠɨɭ ɪɫɠɟɪɩɦɛɞɛɠɭ, ɲɭɩ ɝ ɬɦɠɟɮɹɴɠɧ ɧɠɬɺɱɠ

 

ɢɛɭɫɛɭɶ ɜɮɟɮɭ ɭɛɥɣɧɣ ɡɠ, ɣ, ɣɬɰɩɟɺ ɣɢ ɸɭɩɞɩ, ɝɶɜɣɫɛɠɭ ɨɛɣɜɩɦɠɠ

 

ɝɶɞɩɟɨɮɹ ɟɦɺ ɬɠɜɺ ɬɥɣɟɥɮ. Ʌɛɥɮɹ ɬɥɣɟɥɮ ɝɶɜɫɛɦ ɥɦɣɠɨɭ? Ƚ ɩɭɝɠɭ

 

ɢɛɪɣɳɣɭɠ, ɬɥɩɦɷɥɩ ɫɮɜɦɠɤ ɬɩɬɭɛɝɣɭ ɸɭɛ ɬɥɣɟɥɛ.

 

ɉɭɝɠɭ:

 

B5

Ɉɛɤɟɣɭɠ ɥɩɫɠɨɷ ɮɫɛɝɨɠɨɣɺ: 32 4x

2.

 

ɉɭɝɠɭ:

 

B6

ɒɠɭɶɫɠɰɮɞɩɦɷɨɣɥ ABCD ɝɪɣɬɛɨ ɝ ɩɥɫɮɡɨɩɬɭɷ. Ɏɞɩɦ ABC ɫɛɝɠɨ 102q,

 

ɮɞɩɦCAD ɫɛɝɠɨ 65q. Ɉɛɤɟɣɭɠ ɮɞɩɦ ABD. ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɞɫɛɟɮɬɛɰ.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 10 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 5

B7

Ɉɛɤɟɣɭɠ ɢɨɛɲɠɨɣɠ ɝɶɫɛɡɠɨɣɺ (3942 262) : 420.

 

ɉɭɝɠɭ:

 

 

B8

Ɉɛ ɫɣɬɮɨɥɠ ɣɢɩɜɫɛɡɻɨ ɞɫɛɯɣɥ ɯɮɨɥɱɣɣ

y f (x), ɩɪɫɠɟɠɦɻɨɨɩɤ ɨɛ

 

ɣɨɭɠɫɝɛɦɠ ( 4; 7). Ɉɛɤɟɣɭɠ ɥɩɦɣɲɠɬɭɝɩ ɭɩɲɠɥ, ɝ ɥɩɭɩɫɶɰ ɥɛɬɛɭɠɦɷɨɛɺ ɥ

 

ɞɫɛɯɣɥɮ ɯɮɨɥɱɣɣ ɪɛɫɛɦɦɠɦɷɨɛ ɪɫɺɧɩɤ y

11.

ɉɭɝɠɭ:

B9 Ƚ

ɪɫɺɧɩɮɞɩɦɷɨɩɧ

ɪɛɫɛɦɦɠɦɠɪɣɪɠɟɠ ABCDA B C D

ɣɢɝɠɬɭɨɩ, ɲɭɩ

 

 

1

1

1

1

CC1

4, A1B1 1, BC

8. Ɉɛɤɟɣɭɠ ɟɦɣɨɮ ɟɣɛɞɩɨɛɦɣ DB1.

 

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 10 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 6

B10 Ƚ ɬɜɩɫɨɣɥɠ ɜɣɦɠɭɩɝ ɪɩ ɣɬɭɩɫɣɣ ɝɬɠɞɩ 50 ɜɣɦɠɭɩɝ, ɝ 3 ɣɢ ɨɣɰ ɝɬɭɫɠɲɛɠɭɬɺ ɝɩɪɫɩɬ ɩɜ Ȼɦɠɥɬɛɨɟɫɠ II. Ɉɛɤɟɣɭɠ ɝɠɫɩɺɭɨɩɬɭɷ ɭɩɞɩ, ɲɭɩ ɝ ɬɦɮɲɛɤɨɩ ɝɶɜɫɛɨɨɩɧ ɨɛ ɸɥɢɛɧɠɨɠ ɜɣɦɠɭɠ ɳɥɩɦɷɨɣɥɮ ɨɠ ɟɩɬɭɛɨɠɭɬɺ ɝɩɪɫɩɬɛ ɩɜ Ȼɦɠɥɬɛɨɟɫɠ II.

ɉɭɝɠɭ:

B11 Ɉɛɤɟɣɭɠ ɪɦɩɴɛɟɷ ɪɩɝɠɫɰɨɩɬɭɣ ɧɨɩɞɩɞɫɛɨɨɣɥɛ, ɣɢɩɜɫɛɡɠɨɨɩɞɩ ɨɛ ɫɣɬɮɨɥɠ. Ƚɬɠ ɟɝɮɞɫɛɨɨɶɠ ɮɞɦɶ ɧɨɩɞɩɞɫɛɨɨɣɥɛ ɪɫɺɧɶɠ.

ɉɭɝɠɭ:

B12 Ɍɥɩɫɩɬɭɷ ɛɝɭɩɧɩɜɣɦɺ, ɫɛɢɞɩɨɺɹɴɠɞɩɬɺ ɬ ɧɠɬɭɛ ɬɭɛɫɭɛ ɪɩ ɪɫɺɧɩɦɣɨɠɤɨɩɧɮ ɩɭɫɠɢɥɮ ɪɮɭɣ ɟɦɣɨɩɤ l ɥɧ ɬ ɪɩɬɭɩɺɨɨɶɧ ɮɬɥɩɫɠɨɣɠɧ

a ɤɦ/ɱ2, ɝɶɲɣɬɦɺɠɭɬɺ ɪɩ ɯɩɫɧɮɦɠ Ȟ 2la. ɉɪɫɠɟɠɦɣɭɠ ɨɛɣɧɠɨɷɳɠɠ

ɮɬɥɩɫɠɨɣɠ, ɬ ɥɩɭɩɫɶɧ ɟɩɦɡɠɨ ɟɝɣɞɛɭɷɬɺ ɛɝɭɩɧɩɜɣɦɷ, ɲɭɩɜɶ, ɪɫɩɠɰɛɝ 1 ɥɣɦɩɧɠɭɫ, ɪɫɣɩɜɫɠɬɭɣ ɬɥɩɫɩɬɭɷ ɨɠ ɧɠɨɠɠ 130 ɥɧ/ɲ. ɉɭɝɠɭ ɝɶɫɛɢɣɭɠ ɝ

ɤɦ/ɱ2.

ɉɭɝɠɭ:

B13 ɇɩɭɩɫɨɛɺ ɦɩɟɥɛ ɪɫɩɳɦɛ ɪɫɩɭɣɝ ɭɠɲɠɨɣɺ ɫɠɥɣ 135 ɥɧ ɣ ɝɠɫɨɮɦɛɬɷ ɝ ɪɮɨɥɭ ɩɭɪɫɛɝɦɠɨɣɺ, ɢɛɭɫɛɭɣɝ ɨɛ ɩɜɫɛɭɨɶɤ ɪɮɭɷ ɨɛ 6 ɲɛɬɩɝ ɧɠɨɷɳɠ. Ɉɛɤɟɣɭɠ ɬɥɩɫɩɬɭɷ ɭɠɲɠɨɣɺ, ɠɬɦɣ ɬɥɩɫɩɬɭɷ ɦɩɟɥɣ ɝ ɨɠɪɩɟɝɣɡɨɩɤ ɝɩɟɠ ɫɛɝɨɛ 12 ɥɧ/ɲ. ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɥɧ/ɲ.

ɉɭɝɠɭ:

B14 Ɉɛɤɟɣɭɠ ɭɩɲɥɮ ɧɣɨɣɧɮɧɛ ɯɮɨɥɱɣɣ y

x2 4x 26.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 10 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ) Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 7

ɒɛɬɭɷ 2

ȿɦɺ ɢɛɪɣɬɣ ɫɠɳɠɨɣɤ ɣ ɩɭɝɠɭɩɝ ɨɛ ɢɛɟɛɨɣɺ C1–C6 ɣɬɪɩɦɷɢɮɤɭɠ ɜɦɛɨɥ ɩɭɝɠɭɩɝ ʌ 2. ɂɛɪɣɳɣɭɠ ɬɨɛɲɛɦɛ ɨɩɧɠɫ ɝɶɪɩɦɨɺɠɧɩɞɩ ɢɛɟɛɨɣɺ, ɛ ɢɛɭɠɧ ɪɩɦɨɩɠ ɩɜɩɬɨɩɝɛɨɨɩɠ ɫɠɳɠɨɣɠ ɣ ɩɭɝɠɭ.

C1

ɛ) ɋɠɳɣɭɠ ɮɫɛɝɨɠɨɣɠ sin2x 2

 

3 sin2x 6cosx 6 3 sinx 0.

 

 

ɜ) Ɉɛɤɟɣɭɠ ɝɬɠ ɥɩɫɨɣ ɸɭɩɞɩ ɮɫɛɝɨɠɨɣɺ, ɪɫɣɨɛɟɦɠɡɛɴɣɠ ɪɫɩɧɠɡɮɭɥɮ

 

ª 3ʌ;

 

3ʌ

º.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

«

»

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

¬

2 ¼

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C2

Ƚ ɪɫɛɝɣɦɷɨɩɤ ɲɠɭɶɫɻɰɮɞɩɦɷɨɩɤ ɪɣɫɛɧɣɟɠ SABCD ɝɬɻ ɫɠɜɫɛ ɫɛɝɨɶ 4.

 

ɍɩɲɥɣ M ɣ

K – ɬɠɫɠɟɣɨɶ ɜɩɥɩɝɶɰ

ɫɻɜɠɫ

SB ɣ SC ɬɩɩɭɝɠɭɬɭɝɠɨɨɩ.

 

Ɉɛɤɟɣɭɠ ɮɞɩɦ ɧɠɡɟɮ ɪɦɩɬɥɩɬɭɺɧɣ AMK ɣ BCS.

 

 

 

 

C3

ɋɠɳɣɭɠ ɬɣɬɭɠɧɮ ɨɠɫɛɝɠɨɬɭɝ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

­

(x

2

3, 6x 3, 24)(x 1, 5) t 0,

 

 

 

 

 

 

°

 

 

 

 

 

 

 

®

 

1

 

 

 

1

 

d 5.

 

 

 

 

 

 

 

 

 

 

 

 

°

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x 2

x

1

 

 

 

 

 

 

 

 

 

 

 

 

¯

 

 

 

 

 

 

 

 

 

C4

Ɋɦɩɴɛɟɷ

ɭɫɛɪɠɱɣɣ

 

ABCD

ɫɛɝɨɛ

675.

 

 

ȿɣɛɞɩɨɛɦɣ

AC ɣ BD

 

ɪɠɫɠɬɠɥɛɹɭɬɺ ɝ ɭɩɲɥɠ O. ɉɭɫɠɢɥɣ, ɬɩɠɟɣɨɺɹɴɣɠ ɬɠɫɠɟɣɨɮ P ɩɬɨɩɝɛɨɣɺ

 

AD ɬ

ɝɠɫɳɣɨɛɧɣ B ɣ C , ɪɠɫɠɬɠɥɛɹɭɬɺ ɬ ɟɣɛɞɩɨɛɦɺɧɣ ɭɫɛɪɠɱɣɣ ɝ

 

ɭɩɲɥɛɰ M ɣ N. Ɉɛɤɟɣɭɠ ɪɦɩɴɛɟɷ ɭɫɠɮɞɩɦɷɨɣɥɛ MON, ɠɬɦɣ ɩɟɨɩ ɣɢ

 

ɩɬɨɩɝɛɨɣɤ ɭɫɛɪɠɱɣɣ ɝɟɝɩɠ ɧɠɨɷɳɠ ɟɫɮɞɩɞɩ.

 

 

 

 

C5

Ɋɫɣ

ɥɛɥɣɰ

a ɮɫɛɝɨɠɨɣɠ

 

x2 2x 3 2a

 

x a

 

3 ɣɧɠɠɭ

ɫɩɝɨɩ ɭɫɣ

 

 

 

ɥɩɫɨɺ?

C6 Ɍɮɧɧɛ ɪɺɭɣ ɨɛɣɧɠɨɷɳɣɰ ɨɛɭɮɫɛɦɷɨɶɰ ɟɠɦɣɭɠɦɠɤ ɨɛɭɮɫɛɦɷɨɩɞɩ ɲɣɬɦɛ ɫɛɝɨɛ 17, ɛ ɬɮɧɧɛ ɲɠɭɶɫɠɰ ɨɛɣɜɩɦɷɳɣɰ ɠɞɩ ɟɠɦɣɭɠɦɠɤ ɫɛɝɨɛ 671. Ɉɛɤɟɣɭɠ ɲɣɬɦɩ.

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ȿɣɛɞɨɩɬɭɣɲɠɬɥɛɺ ɫɛɜɩɭɛ ʌ 1

ɪɩ ɇȻɍɀɇȻɍɃɅɀ

22 ɧɛɺ 2012 ɞɩɟɛ

10 ɥɦɛɬɬ

Ƚɛɫɣɛɨɭ 11 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

ɋɛɤɩɨ Ⱦɩɫɩɟ (ɨɛɬɠɦɻɨɨɶɤ ɪɮɨɥɭ) ɓɥɩɦɛ Ʌɦɛɬɬ

ɏɛɧɣɦɣɺ

Ƀɧɺ

ɉɭɲɠɬɭɝɩ

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 11 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ) Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 2

Ƀɨɬɭɫɮɥɱɣɺ ɪɩ ɝɶɪɩɦɨɠɨɣɹ ɫɛɜɩɭɶ

Ɉɛ ɝɶɪɩɦɨɠɨɣɠ ɸɥɢɛɧɠɨɛɱɣɩɨɨɩɤ ɫɛɜɩɭɶ ɪɩ ɧɛɭɠɧɛɭɣɥɠ ɟɛɻɭɬɺ 4 ɲɛɬɛ (240 ɧɣɨ). ɋɛɜɩɭɛ ɬɩɬɭɩɣɭ ɣɢ ɟɝɮɰ ɲɛɬɭɠɤ ɣ ɬɩɟɠɫɡɣɭ 20 ɢɛɟɛɨɣɤ.

ɒɛɬɭɷ 1 ɬɩɟɠɫɡɣɭ 14 ɢɛɟɛɨɣɤ ɬ ɥɫɛɭɥɣɧ ɩɭɝɠɭɩɧ (Ƚ1–Ƚ14) ɜɛɢɩɝɩɞɩ ɮɫɩɝɨɺ ɪɩ ɧɛɭɠɫɣɛɦɮ ɥɮɫɬɛ ɧɛɭɠɧɛɭɣɥɣ. ɂɛɟɛɨɣɺ ɲɛɬɭɣ 1 ɬɲɣɭɛɹɭɬɺ ɝɶɪɩɦɨɠɨɨɶɧɣ, ɠɬɦɣ ɸɥɢɛɧɠɨɮɠɧɶɤ ɟɛɦ ɝɠɫɨɶɤ ɩɭɝɠɭ ɝ ɝɣɟɠ ɱɠɦɩɞɩ ɲɣɬɦɛ ɣɦɣ ɥɩɨɠɲɨɩɤ ɟɠɬɺɭɣɲɨɩɤ ɟɫɩɜɣ.

ɒɛɬɭɷ 2 ɬɩɟɠɫɡɣɭ 6 ɜɩɦɠɠ ɬɦɩɡɨɶɰ ɢɛɟɛɨɣɤ (Ɍ1–Ɍ6) ɪɩ ɧɛɭɠɫɣɛɦɮ ɥɮɫɬɛ ɧɛɭɠɧɛɭɣɥɣ. Ɋɫɣ ɣɰ ɝɶɪɩɦɨɠɨɣɣ ɨɛɟɩ ɢɛɪɣɬɛɭɷ ɪɩɦɨɩɠ ɫɠɳɠɨɣɠ ɣ ɩɭɝɠɭ.

Ɍɩɝɠɭɮɠɧ ɟɦɺ ɸɥɩɨɩɧɣɣ ɝɫɠɧɠɨɣ ɪɫɩɪɮɬɥɛɭɷ ɢɛɟɛɨɣɠ, ɥɩɭɩɫɩɠ ɨɠ ɮɟɛɠɭɬɺ ɝɶɪɩɦɨɣɭɷ ɬɫɛɢɮ, ɣ ɪɠɫɠɰɩɟɣɭɷ ɥ ɬɦɠɟɮɹɴɠɧɮ. Ʌ ɝɶɪɩɦɨɠɨɣɹ ɪɫɩɪɮɴɠɨɨɶɰ ɢɛɟɛɨɣɤ ɧɩɡɨɩ ɝɠɫɨɮɭɷɬɺ, ɠɬɦɣ ɮ Ƚɛɬ ɩɬɭɛɨɠɭɬɺ ɝɫɠɧɺ.

Ɂɠɦɛɠɧ ɮɬɪɠɰɛ!

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 11 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 3

ɒɛɬɭɷ 1

ɉɭɝɠɭɩɧ ɨɛ ɢɛɟɛɨɣɺ Ƚ1–Ƚ14 ɟɩɦɡɨɩ ɜɶɭɷ ɱɠɦɩɠ ɲɣɬɦɩ ɣɦɣ ɥɩɨɠɲɨɛɺ ɟɠɬɺɭɣɲɨɛɺ ɟɫɩɜɷ. ɉɭɝɠɭ ɬɦɠɟɮɠɭ ɢɛɪɣɬɛɭɷ ɝ ɜɦɛɨɥ ɩɭɝɠɭɩɝ ʌ 1 ɬɪɫɛɝɛ ɩɭ ɨɩɧɠɫɛ ɝɶɪɩɦɨɺɠɧɩɞɩ ɢɛɟɛɨɣɺ, ɨɛɲɣɨɛɺ ɬ ɪɠɫɝɩɤ ɥɦɠɭɩɲɥɣ. Ʌɛɡɟɮɹ ɱɣɯɫɮ, ɢɨɛɥ ɧɣɨɮɬ ɣ ɢɛɪɺɭɮɹ ɪɣɳɣɭɠ ɝ ɩɭɟɠɦɷɨɩɤ ɥɦɠɭɩɲɥɠ ɝ ɬɩɩɭɝɠɭɬɭɝɣɣ ɬ ɪɫɣɝɠɟɻɨɨɶɧɣ ɝ ɜɦɛɨɥɠ ɩɜɫɛɢɱɛɧɣ. ɀɟɣɨɣɱɶ ɣɢɧɠɫɠɨɣɤ ɪɣɬɛɭɷ ɨɠ ɨɮɡɨɩ.

B1 ɉɟɨɛ ɭɛɜɦɠɭɥɛ ɦɠɥɛɫɬɭɝɛ ɝɠɬɣɭ 35 ɧɞ ɣ ɬɩɟɠɫɡɣɭ 8% ɛɥɭɣɝɨɩɞɩ ɝɠɴɠɬɭɝɛ. ɋɠɜɻɨɥɮ ɝ ɝɩɢɫɛɬɭɠ ɟɩ 6 ɧɠɬɺɱɠɝ ɝɫɛɲ ɪɫɩɪɣɬɶɝɛɠɭ 0,8 ɧɞ ɛɥɭɣɝɨɩɞɩ ɝɠɴɠɬɭɝɛ ɨɛ ɥɛɡɟɶɤ ɥɣɦɩɞɫɛɧɧ ɝɠɬɛ ɝ ɬɮɭɥɣ. Ɍɥɩɦɷɥɩ ɭɛɜɦɠɭɩɥ ɸɭɩɞɩ ɦɠɥɛɫɬɭɝɛ ɬɦɠɟɮɠɭ ɟɛɭɷ ɫɠɜɻɨɥɮ ɝɠɬɩɧ 7ɥɞ ɝ ɭɠɲɠɨɣɠ ɬɮɭɩɥ?

ɉɭɝɠɭ:

B2 Ɉɛ ɟɣɛɞɫɛɧɧɠ ɪɩɥɛɢɛɨ ɬɫɠɟɨɣɤ ɜɛɦɦ ɮɲɛɬɭɨɣɥɩɝ 8 ɬɭɫɛɨ ɝ ɭɠɬɭɣɫɩɝɛɨɣɣ ɮɲɛɴɣɰɬɺ 4-ɞɩ ɥɦɛɬɬɛ ɪɩ ɧɛɭɠɧɛɭɣɥɠ ɝ 2007 ɞɩɟɮ (ɪɩ 1000ɜɛɦɦɷɨɩɤ ɳɥɛɦɠ).

Ɉɛɤɟɣɭɠ ɲɣɬɦɩ ɬɭɫɛɨ, ɝ ɥɩɭɩɫɶɰ ɬɫɠɟɨɣɤ ɜɛɦɦ ɨɠ ɧɠɨɷɳɠ, ɲɠɧ 500.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 11 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 4

B3 Ɉɛɤɟɣɭɠ ɪɦɩɴɛɟɷ ɭɫɠɮɞɩɦɷɨɣɥɛ,

ɣɢɩɜɫɛɡɻɨɨɩɞɩ ɨɛ

ɥɦɠɭɲɛɭɩɤ ɜɮɧɛɞɠ ɬ ɫɛɢɧɠɫɩɧ ɥɦɠɭɥɣ 1 ɬɧ u 1 ɬɧ (ɬɧ. ɫɣɬ.). ɉɭɝɠɭ ɟɛɤɭɠ ɝ ɥɝɛɟɫɛɭɨɶɰ ɬɛɨɭɣɧɠɭɫɛɰ.

ɉɭɝɠɭ:

B4 ȿɦɺ ɩɬɭɠɥɦɠɨɣɺ ɧɮɢɠɤɨɶɰ ɝɣɭɫɣɨ ɭɫɠɜɮɠɭɬɺ ɢɛɥɛɢɛɭɷ 40 ɩɟɣɨɛɥɩɝɶɰ

 

ɬɭɠɥɩɦ ɝ ɩɟɨɩɤ ɣɢ ɭɫɻɰ ɯɣɫɧ. Ɋɦɩɴɛɟɷ ɥɛɡɟɩɞɩ ɬɭɠɥɦɛ 0,15 ɦ2. Ƚ

 

ɭɛɜɦɣɱɠ ɪɫɣɝɠɟɠɨɶ ɱɠɨɶ ɨɛ ɬɭɠɥɦɩ ɣ ɨɛ ɫɠɢɥɮ ɬɭɠɥɩɦ. Ɍɥɩɦɷɥɩ ɫɮɜɦɠɤ

 

ɜɮɟɠɭ ɬɭɩɣɭɷ ɬɛɧɶɤ ɟɠɳɠɝɶɤ ɢɛɥɛɢ?

 

 

ɑɠɨɛ

ɋɠɢɥɛ ɬɭɠɥɦɛ

 

 

ɏɣɫɧɛ

ɬɭɠɥɦɛ

(ɫɮɜ. ɢɛ ɩɟɨɩ

ȿɩɪɩɦɨɣɭɠɦɷɨɶɠ ɮɬɦɩɝɣɺ

 

(ɫɮɜ. ɢɛ

 

 

1 ɦ2)

ɬɭɠɥɦɩ)

 

 

 

 

 

 

A

300

12

 

 

B

290

14

Ɋɫɣ ɢɛɥɛɢɠ ɨɛ ɬɮɧɧɮ ɜɩɦɷɳɠ 2500

 

C

320

10

 

ɫɮɜ. ɫɠɢɥɛ ɜɠɬɪɦɛɭɨɩ

 

 

 

 

 

ɉɭɝɠɭ:

 

 

 

B5

Ɉɛɤɟɣɭɠ ɥɩɫɠɨɷ ɮɫɛɝɨɠɨɣɺ x 26

7.

 

ɉɭɝɠɭ:

 

 

 

B6

Ƚ ɭɫɠɮɞɩɦɷɨɣɥɠ ABC ɮɞɩɦ A ɫɛɝɠɨ 15q, ɛ ɮɞɦɶ B ɣ C ɩɬɭɫɶɠ. BD ɣ CE

 

ɝɶɬɩɭɶ, ɪɠɫɠɬɠɥɛɹɴɣɠɬɺ ɝ ɭɩɲɥɠ O. Ɉɛɤɟɣɭɠ ɮɞɩɦ DOE. ɉɭɝɠɭ ɟɛɤɭɠ ɝ

 

ɞɫɛɟɮɬɛɰ.

 

 

 

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 11 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

 

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 5

B7

Ɉɛɤɟɣɭɠ ɢɨɛɲɠɨɣɠ ɝɶɫɛɡɠɨɣɺ

(3

6 )2

.

 

 

6

 

 

 

 

 

ɉɭɝɠɭ:

 

 

B8

Ɉɛ ɫɣɬɮɨɥɠ ɣɢɩɜɫɛɡɻɨ ɞɫɛɯɣɥ

y f c(x) ɪɫɩɣɢɝɩɟɨɩɤ ɯɮɨɥɱɣɣ f (x),

 

ɩɪɫɠɟɠɦɻɨɨɩɤ ɨɛ ɣɨɭɠɫɝɛɦɠ ( 16; 8). Ɉɛɤɟɣɭɠ ɥɩɦɣɲɠɬɭɝɩ ɭɩɲɠɥ

 

ɧɛɥɬɣɧɮɧɛ ɯɮɨɥɱɣɣ f (x), ɪɫɣɨɛɟɦɠɡɛɴɣɰ ɩɭɫɠɢɥɮ[ 13; 6].

ɉɭɝɠɭ:

 

 

 

B9 Ƚ

ɪɫɺɧɩɮɞɩɦɷɨɩɧ ɪɛɫɛɦɦɠɦɠɪɣɪɠɟɠ ABCDA B C D ɣɢɝɠɬɭɨɩ, ɲɭɩ

 

1

1

1

1

AA1

4, A1B1 19, B1C1 8. Ɉɛɤɟɣɭɠ ɟɦɣɨɮ ɟɣɛɞɩɨɛɦɣ BD1.

ɉɭɝɠɭ:

B10 Ƚ ɬɜɩɫɨɣɥɠ ɜɣɦɠɭɩɝ ɪɩ ɞɠɩɞɫɛɯɣɣ ɝɬɠɞɩ 30 ɜɣɦɠɭɩɝ, ɝ 12 ɣɢ ɨɣɰ ɝɬɭɫɠɲɛɠɭɬɺ ɝɩɪɫɩɬ ɪɩ ɫɠɥɛɧ ɣ ɩɢɠɫɛɧ. Ɉɛɤɟɣɭɠ ɝɠɫɩɺɭɨɩɬɭɷ ɭɩɞɩ, ɲɭɩ ɝ ɬɦɮɲɛɤɨɩ ɝɶɜɫɛɨɨɩɧ ɨɛ ɸɥɢɛɧɠɨɠ ɜɣɦɠɭɠ ɳɥɩɦɷɨɣɥɮ ɟɩɬɭɛɨɠɭɬɺ ɝɩɪɫɩɬ ɪɩ ɫɠɥɛɧ ɣ ɩɢɠɫɛɧ.

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

ɇɛɭɠɧɛɭɣɥɛ. 10 ɥɦɛɬɬ. Ƚɛɫɣɛɨɭ 11 (Ƚɩɬɭɩɥ ɜɠɢ ɦɩɞɛɫɣɯɧɩɝ)

Ƚɣɟɠɩɫɛɢɜɩɫ ɨɛ ɬɛɤɭɠ http://statgrad.cde.ru 6

B11 Ɉɛɤɟɣɭɠ ɪɦɩɴɛɟɷ ɪɩɝɠɫɰɨɩɬɭɣ ɧɨɩɞɩɞɫɛɨɨɣɥɛ, ɣɢɩɜɫɛɡɠɨɨɩɞɩ ɨɛ ɫɣɬɮɨɥɠ. Ƚɬɠ ɟɝɮɞɫɛɨɨɶɠ ɮɞɦɶ ɧɨɩɞɩɞɫɛɨɨɣɥɛ ɪɫɺɧɶɠ.

ɉɭɝɠɭ:

B12 Ɉɠɜɩɦɷɳɩɤ ɧɺɲɣɥ ɜɫɩɬɛɹɭ ɪɩɟ ɩɬɭɫɶɧ ɮɞɦɩɧ Į ɥ ɪɦɩɬɥɩɤ

ɞɩɫɣɢɩɨɭɛɦɷɨɩɤ ɪɩɝɠɫɰɨɩɬɭɣ ɢɠɧɦɣ. ɇɛɥɬɣɧɛɦɷɨɛɺ ɝɶɬɩɭɛ ɪɩɦɻɭɛ ɧɺɲɣɥɛ, ɝɶɫɛɡɠɨɨɛɺ ɝ ɧɠɭɫɛɰ, ɩɪɫɠɟɠɦɺɠɭɬɺ ɯɩɫɧɮɦɩɤ

 

Ȟ2

 

H

0

(1 cos2Į), ɞɟɠ Ȟ

14 ɧ/ɬ — ɨɛɲɛɦɷɨɛɺ ɬɥɩɫɩɬɭɷ ɧɺɲɣɥɛ, ɛ g

 

 

4g

0

 

 

 

ɪɛɟɠɨɣɺ (ɬɲɣɭɛɤɭɠ g 10 ɦ/ɫ2). Ɋɫɣ ɥɛɥɩɧ

ɮɬɥɩɫɠɨɣɠ ɬɝɩɜɩɟɨɩɞɩ

ɨɛɣɧɠɨɷɳɠɧ ɢɨɛɲɠɨɣɣ ɮɞɦɛ Į (ɝ ɞɫɛɟɮɬɛɰ) ɧɺɲɣɥ ɪɫɩɦɠɭɣɭ ɨɛɟ ɬɭɠɨɩɤ ɝɶɬɩɭɩɤ 6, 35 ɧ ɨɛ ɫɛɬɬɭɩɺɨɣɣ 1 ɧ?

ɉɭɝɠɭ:

B13 Ƀɧɠɠɭɬɺ ɟɝɛ ɬɪɦɛɝɛ. Ɋɠɫɝɶɤ ɬɩɟɠɫɡɣɭ 5% ɨɣɥɠɦɺ, ɝɭɩɫɩɤ — 35% ɨɣɥɠɦɺ. Ƀɢ ɸɭɣɰ ɟɝɮɰ ɬɪɦɛɝɩɝ ɪɩɦɮɲɣɦɣ ɭɫɠɭɣɤ ɬɪɦɛɝ ɧɛɬɬɩɤ 150 ɥɞ, ɬɩɟɠɫɡɛɴɣɤ 25% ɨɣɥɠɦɺ. Ɉɛ ɬɥɩɦɷɥɩ ɥɣɦɩɞɫɛɧɧɩɝ ɧɛɬɬɛ ɪɠɫɝɩɞɩ ɬɪɦɛɝɛ ɧɠɨɷɳɠ ɧɛɬɬɶ ɝɭɩɫɩɞɩ?

ɉɭɝɠɭ:

B14 Ɉɛɤɟɣɭɠ ɨɛɣɜɩɦɷɳɠɠ ɢɨɛɲɠɨɣɠ ɯɮɨɥɱɣɣ y 24cosx 28x 23 ɨɛ ɩɭɫɠɢɥɠ

ª«¬0; 3ʌº»¼.

2

ɉɭɝɠɭ:

© ɇɃɉɉ 2012 ɞ. Ɋɮɜɦɣɥɛɱɣɺ ɝ Ƀɨɭɠɫɨɠɭɠ ɣɦɣ ɪɠɲɛɭɨɶɰ ɣɢɟɛɨɣɺɰ ɜɠɢ ɪɣɬɷɧɠɨɨɩɞɩ ɬɩɞɦɛɬɣɺ ɇɃɉɉ ɢɛɪɫɠɴɠɨɛ

Соседние файлы в предмете [НЕСОРТИРОВАННОЕ]