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тригонометрия

Authored by Бахар Абилова

Mathematics, Science

University

Used 12+ times

тригонометрия
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5 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Дұрыс тепе-теңдікті табыңдар

sin(90°+α)=sinα\sin\left(90\degree+\alpha\right)=-\sin\alpha

tg(180°+α)=tgαtg\left(180\degree+\alpha\right)=tg\alpha

cos(270°α)=cosα\cos\left(270\degree-\alpha\right)=-\cos\alpha

ctg(360°α)=tgα\operatorname{ctg}\left(360\degree-\alpha\right)=tg\alpha

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Қандай кезде функция атауы өзгереді?

 π2±α, π±α\frac{\pi}{2}\pm\alpha,\ \pi\pm\alpha  

 3π2±α, 2π±α\frac{3\pi}{2}\pm\alpha,\ 2\pi\pm\alpha  

 π2±α, 3π2±α\frac{\pi}{2}\pm\alpha,\ \frac{3\pi}{2}\pm\alpha  

 π±α, 2πα\pi\pm\alpha,\ 2\pi-\alpha  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Қандай жағдайда функция атауы өзгермейді?

π±α, π2±α\pi\pm\alpha,\ \frac{\pi}{2}\pm\alpha

π±α, 2πα\pi\pm\alpha,\ 2\pi-\alpha

3π2±α, π2±α\frac{3\pi}{2}\pm\alpha,\ \frac{\pi}{2}\pm\alpha

2πα, π2±α2\pi-\alpha,\ \frac{\pi}{2}\pm\alpha

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Өрнектің мәнін тап: sin4π3\sin\frac{4\pi}{3}  

 11  

 12-\frac{1}{2}  

 32-\frac{\sqrt{3}}{2}  

 32\frac{\sqrt{3}}{2}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Жұп функцияны көрсетіңіз

sinx

tgx

ctgx

cosx

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