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Proving Trig Identities

Authored by Michelle Cayford

Mathematics

11th Grade

Used 26+ times

Proving Trig Identities
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tanθ=23 and secθ=133\tan\theta=\frac{2}{3}\ and\ \sec\theta=\frac{\sqrt{13}}{3}        Find  sinθ\sin\theta  .

 32\frac{3}{2}  

 21313-\frac{2\sqrt{13}}{13}  

 21313\frac{2\sqrt{13}}{13}  

2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 1cot2x+1\frac{1}{\cot^2x+1}  

Simplify the expression

 sin2x\sin^2x  

 secx\sec x  

 tanx\tan x  

 cos2x\cos^2x  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tanθ1cos2θ\frac{\tan\theta}{1-\cos^2\theta}  

Simplify.

 cotθsecθ\cot\theta\sec\theta  

 tan2θ\tan^2\theta  

 secθ\sec\theta  

 secθcscθ\sec\theta\csc\theta  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cot2x(sin2x)\cot^2x\left(\sin^2x\right)                                                             Simplify.

 sin2x\sin^2x  

 cos2x\cos^2x  

1

 tanθ\tan\theta  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 sec2(θ)csc2θ\frac{\sec^2\left(-\theta\right)}{\csc^2\theta}  

Simplify.

 tan2θ\tan^2\theta  

 cos2θ\cos^2\theta  

 sin2θ\sin^2\theta  

 sec2θ\sec^2\theta  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tan2x1+secx\frac{\tan^2x}{1+\sec x}  

Simplify.

 cos2x+1\cos^2x+1  

 1cos2x1-\cos^2x  

 tanx+1\tan x+1  

 secx1\sec x-1  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tan(x)cosx\tan\left(-x\right)\cos x  

Simplify.

 secx-\sec x  

 cotx\cot x  

 sinx-\sin x  

 cscx\csc x  

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