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Значения синуса, косинуса, тангенса и котангенса углов 30°,

Authored by Aliya Tolebayeva

Mathematics

8th Grade

Used 12+ times

Значения синуса, косинуса, тангенса и котангенса углов 30°,
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10 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Вычислите  cos 90°\cos\ 90\degree 

22\frac{\sqrt{2}}{2}

12\frac{1}{2}

32\frac{\sqrt{3}}{2}

 00 

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Тангенс какого угла равен корень из трех?

300
450
600
150

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

дан острый угол α, найдите tgα, если ctgα = √3

1

√3

1

2

√3

2

√2

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Синус, какого угла равен 1/2?

300
600
450
00

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

sin45 °\degree  

1

 22\frac{\sqrt{2}}{2}  

 32\frac{\sqrt{3}}{2}  

 12\frac{1}{2}  

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

cos30

1/2

1

√3/2

√2/2

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

tg30

1

0

√3/3

1/2

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