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Тригонометрия

Authored by Sabina Keldibek

Mathematics

9th Grade

Used 1+ times

Тригонометрия
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Негізгі тригонометриялық тепе - теңдікті көрсетіңдер:

sinx+cosx=1\sin x+\cos x=1

sin2x+cos2x=1\sin^2x+\cos^2x=1

sin2x+cos2y=1\sin^2x+\cos^2y=1

sin2xcos2x=1\sin^2x-\cos^2x=1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

tgx=?

cosxsinx\frac{\cos x}{\sin x}

1+1cos2x1+\frac{1}{\cos^2x}

sinxcosx\frac{\sin x}{\cos x}

1+cosx1+\cos x

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Қосындының косинусын көрсет:

 cos(a+b)\cos\left(a+b\right)  

cosacosb+sinasinb

cosasinb-cosbsina

cosasina+cosbsinb

cosacosb-sinasinb

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cosαsinα\frac{\cos\alpha}{\sin\alpha}  

1

 sin2α\sin^2\alpha  

 tgαtg\alpha  

 ctgα\operatorname{ctg}\alpha  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tgαctgαtg\alpha\cdot\operatorname{ctg}\alpha  

0

2

1

 sin2α\sin^2\alpha  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 1+tg2α=?1+tg^2\alpha=?  

 cosαsinα\frac{\cos\alpha}{\sin\alpha}  

 1sin2α\frac{1}{\sin^2\alpha}  

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

 1cos2α\frac{1}{\cos^2\alpha}  

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Дұрыс қосу формулаларын таңдаңыз

sin(α+β)=sinαcosβ+cosαsinβ\sin\left(\alpha+\beta\right)=\sin\alpha\cos\beta+\cos\alpha\sin\beta

sin(αβ)=sinαcosβcosαsinβ\sin\left(\alpha-\beta\right)=\sin\alpha\cos\beta-\cos\alpha\sin\beta

sin(α+β)=sinαsinβ+cosαcosβ\sin\left(\alpha+\beta\right)=\sin\alpha\sin\beta+\cos\alpha\cos\beta

sin(αβ)=cosαsinβsinαcosβ\sin\left(\alpha-\beta\right)=\cos\alpha\sin\beta-\sin\alpha\cos\beta

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