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10th Grade - University

25 Qs

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Assessment

Quiz

Mathematics

10th Grade - University

Practice Problem

Medium

Created by

Huyền Nguyễn

Used 1+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos(x+y)=?\cos\left(x+y\right)=?  

 cosxcosysinxsiny\cos x\cos y-\sin x\sin y  

 cosxcosy+sinxsiny\cos x\cos y+\sin x\sin y  

 sinxcosycosysinx\sin x\cos y-\cos y\sin x  

 sinxcosy+cosxsiny\sin x\cos y+\cos x\sin y  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 30o=.....rad30^o=.....rad  

 π6\frac{\pi}{6}  

 π3\frac{\pi}{3}  

 π4\frac{\pi}{4}  

 π2\frac{\pi}{2}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2π3=....\frac{2\pi}{3}=....  

 30o30^o  

 45o45^o  

 60o60^o  

 120o120^o  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 sin45o=....\sin45^o=....  

 12\frac{1}{2}  

 2\sqrt{2}  

 22\frac{\sqrt{2}}{2}  

 2-\sqrt{2}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt


 cos37π12=?\cos\frac{37\pi}{12}=?  

 6+24\frac{\sqrt{6}+\sqrt{2}}{4}  

 624\frac{\sqrt{6}-\sqrt{2}}{4}  

 6+24-\frac{\sqrt{6}+\sqrt{2}}{4}  

 264\frac{\sqrt{2}-\sqrt{6}}{4}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tan2x=...\tan2x=...  

 sinxcosx\frac{\sin x}{\cos x}  

 sinacosa\frac{\sin a}{\cos a}  

 sin2xcos2x\frac{\sin2x}{\cos2x}  

 sin2acos2a\frac{\sin2a}{\cos2a}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chọn đẳng thức đúng ?

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

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

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

cos2x=sin2x1\cos^2x=\sin^2x-1

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