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Тригонометриялық өрнектерді тепе-тең түрлендіру

Authored by Shaizat Bakhytzhan

Mathematics

9th Grade

Used 73+ times

Тригонометриялық өрнектерді тепе-тең түрлендіру
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20 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

sin2x+cos2x=?

0

1

-1

π2\frac{\pi}{2}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tgx×ctgx=?tgx\times\operatorname{ctg}x=?  

0

sinx

1

 cos2x\cos^2x  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin(x+y)=?

sinxcosy-cosxsiny

cosxcosy + sinxsiny

sinxcosy+cosxsiny

cosxcosy - sinxsiny

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 sinxcosx=?\frac{\sin x}{\cos x}=?  

ctgx

 cos2x\cos^2x  

tgx

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 1+tg2x=1+tg^2x=  

 1cos2x\frac{1}{\cos^2x}  

 ctg2x\operatorname{ctg}^2x  

 1sin2x\frac{1}{\sin^2x}  

tgx

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

cos(x-y)=

sinx cosy + cosx siny

cosx cosy - sinx siny

sinx cosy - cosx siny

cosx cosy + sinx siny

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos(3π2+α)=\cos\left(\frac{3\pi}{2}+\alpha\right)=  

 sinα-\sin\alpha  

 cosα\cos\alpha  

 sinα\sin\alpha  

 cosα-\cos\alpha  

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