MATHS VIVA CLASS 11 TRIGO: 2 march

MATHS VIVA CLASS 11 TRIGO: 2 march

11th Grade

25 Qs

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MATHS VIVA CLASS 11 TRIGO: 2 march

MATHS VIVA CLASS 11 TRIGO: 2 march

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Medium

Created by

AVANI PGT

Used 11+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Which  of  theseWhich\ -\ of\ -\ these  
does - not - represent
 cos 2x\cos\ 2x  

 cos2x sin2x\cos^2x-\ \sin^2x  

 2cos2x12\cos^2x-1  

 1+2sin2x1+2\sin^2x  

 1tan2x1+tan2x\frac{1-\tan^2x}{1+\tan^2x}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2tanx1+ tan2x=\frac{2\tan x}{1+\ \tan^2x}=  

tan 2x

cos 2x

sin2x

none

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos(2πx)=\cos\left(2\pi-x\right)=  

 - cos x

cos x

- sin x 

sin x

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cosx.cosy  sinx.siny=\cos x.\cos y\ -\ \sin x.\sin y=  

 cos(xy)\cos\left(x-y\right)  

 cos(x+y)\cos\left(x+y\right)  

 sin(xy)\sin\left(x-y\right)  

 sin(x+y)\sin\left(x+y\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos(x)=\cos\left(-x\right)=  

- cos x

cos x

sin x

- sinx

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 sinx  siny =\sin x\ -\ \sin y\ =  

 2 sin(x+y2)cos(xy2)2\ \sin\left(\frac{x+y}{2}\right)\cos\left(\frac{x-y}{2}\right)  

 2 cos(x+y2)cos(xy2)2\ \cos\left(\frac{x+y}{2}\right)\cos\left(\frac{x-y}{2}\right)  

 2 sin(x+y2)sin(xy2)2\ \sin\left(\frac{x+y}{2}\right)\sin\left(\frac{x-y}{2}\right)  

 2 cos(x+y2)sin(xy2)2\ \cos\left(\frac{x+y}{2}\right)\sin\left(\frac{x-y}{2}\right)  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos 3x = \cos\ 3x\ =\   

 4 cos3x+ 3cosx4\ \cos^3x+\ 3\cos x  

 4 cos3x 3 sinx4\ \cos^3x-\ 3\ \sin x  

 4 cos3x 3cosx4\ \cos^3x-\ 3\cos x  

 3 cosx  4 cos3x3\ \cos x\ -\ 4\ \cos^3x  

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