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1231

Authored by ainur aimova

Mathematics

1st - 3rd Grade

Used 8+ times

1231
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6 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

 sin2α+cos2α=?\sin^2α+\cos^2α=?  


1

-1

0

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

 tgαctgα=?tg\alpha\cdot\operatorname{ctg}\alpha=?  

1

-1

0

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

 1+tg2α=?1+tg^2\alpha=?  


 1cos2α-\frac{1}{\cos^2\alpha}  

 1cos2α\frac{1}{\cos^2\alpha}  

 1sin2α\frac{1}{\sin^2\alpha}  

 1sin2α-\frac{1}{\sin^2\alpha}  

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

 1+ctg2α=?1+\operatorname{ctg}^2\alpha=?  

 1sin2α-\frac{1}{\sin^2\alpha}  

 1cos2α-\frac{1}{\cos^2\alpha}  

 1sin2α\frac{1}{\sin^2\alpha}  

 1cos2α\frac{1}{\cos^2\alpha}  

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

 sinαcosα=?\frac{\sin\alpha}{\cos\alpha}=?  

 tgatga  

 ctga\operatorname{ctg}a  

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

 cosasina=?\frac{\cos a}{\sin a}=?  

tga

ctga

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