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Математика ОРТ 2

Authored by Гулира Биримкулова

Mathematics

1st Grade

Used 5+ times

Математика ОРТ 2
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Найдите значение α6\sqrt[]{\alpha^6}  + α−2\alpha^{-2} · α2\alpha^2  -2 α\alpha    при α\alpha   = -1

0

4

-1

-2

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Сколько процентов 1 килограмма составляет 200 граммов ?

2%

80%

8%

20%

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Найдите 40% от 80 м.

2м

20м

320дм

3200дм

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Вычислите: (−2)7⋅(−2)3⋅(−3)6(−12)5\frac{\left(-2\right)^7\cdot\left(-2\right)^3\cdot\left(-3\right)^6}{\left(-12\right)^5}  

-3

-2

9

16

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Вычислите  : 20012−199922001^2-1999^2  

15000

10700

19000

8000

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Найдите наибольший общий делитель двух чисел А=60 и В=240.

120

80

60

30

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Упростите выражение : (1−sin⁡α)(1+sin⁡α)cos⁡α\frac{\left(1-\sin\alpha\right)\left(1+\sin\alpha\right)}{\cos\alpha}    .

cos⁡α\cos\alpha  

sin⁡α\sin\alpha  

-1

tgαtg\alpha  

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