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тригонометрия

Authored by Madina Sadikhin

Mathematics

1st - 10th Grade

Used 26+ times

тригонометрия
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

sin⁡a>0 болатын ширектер:\sin a>0\ болатын\ ширектер:  

1-ширек

2-ширек,

3-ширек

1-ширек,

2-ширек

1-ширек,

4-ширек

Answer explanation

Media Image

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

sin⁡30°=\sin30\degree=  

12\frac{1}{2}  

32\frac{\sqrt[]{3}}{2}  

−12-\frac{1}{2}  

00  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

cos⁡(−60°)=\cos\left(-60\degree\right)=  

−12-\frac{1}{2}  

32\frac{\sqrt[]{3}}{2}  

−32-\frac{\sqrt[]{3}}{2}  

12\frac{1}{2}  

Answer explanation

Media Image

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ықшамдаңыз: 1−sin⁡2aЫқшамдаңыз:\ 1-\sin^2a  

cos⁡2a\cos^2a  

−cos⁡2a-\cos^2a  

cos⁡a\cos a  

tgatga  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Негізгі тригонометриялық тепе−теңдікті көрсетіңіз:Негізгі\ тригонометриялық\ тепе-теңдікті\ көрсетіңіз:  

sin⁡2a+cos⁡2a=−1\sin^2a+\cos^2a=-1  

tga=sin⁡acos⁡atga=\frac{\sin a}{\cos a}  

ctg⁡a=sin⁡acos⁡a\operatorname{ctg}a=\frac{\sin a}{\cos a}  

tga⋅ctg⁡2a=1tga\cdot\operatorname{ctg}2a=1  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin⁡390° =\sin390\degree\ =  

12\frac{1}{2}  

00  

−1-1  

32\frac{\sqrt[]{3}}{2}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Тригонометриялық тепе−теңдікті аяқтаңыз: ctg⁡a=...Тригонометриялық\ тепе-теңдікті\ аяқтаңыз:\ \operatorname{ctg}a=...  

1tga\frac{1}{tga}  

sin⁡acos⁡a\frac{\sin a}{\cos a}  

11  

tgatga  

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