Trigonometric Identities

Trigonometric Identities

10th - 12th Grade

25 Qs

quiz-placeholder

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Trigonometric Identities

Trigonometric Identities

Assessment

Quiz

Mathematics

10th - 12th Grade

Medium

Created by

Sandra Yoder

Used 17+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 sinθ=1517, 0θ<90°\sin\theta=\frac{15}{17},\ 0\le\theta<90\degree Find  cos(2θ)\cos\left(2\theta\right)  

 240289\frac{240}{289}  

 161289-\frac{161}{289}  

 161240\frac{161}{240}  

 161240-\frac{161}{240}  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 tanθ = 125 πθ<3π2\tan\theta\ =\ \frac{12}{5}\ \pi\le\theta<\frac{3\pi}{2}  Find  sin θ2\sin\ \frac{\theta}{2}  

 133-\frac{\sqrt{13}}{3}  

 132\frac{\sqrt{13}}{2}  

 133\frac{\sqrt{13}}{3}  

 31313\frac{3\sqrt{13}}{13}  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 tan x = 43, 270°x<360°\tan\ x\ =\ -\frac{4}{3},\ 270\degree\le x<360\degree  find  sin(2x)\sin\left(2x\right)  

 2425\frac{24}{25}  

 247\frac{24}{7}  

 2425-\frac{24}{25}  

 724-\frac{7}{24}  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 cos x = 35, 3π2x<2π\cos\ x\ =\ \frac{3}{5},\ \frac{3\pi}{2}\le x<2\pi  Find  tan x2\tan\ \frac{x}{2}  

 5\sqrt{5}  

 55\frac{\sqrt{5}}{5}  

 12\frac{1}{2}  

 12-\frac{1}{2}  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 cos3xcos2xsin3xsin2x\cos3x\cos2x-\sin3x\sin2x  Simplify this expression

 cosx\cos x  

 sin5x\sin5x  

 cos5x\cos5x  

 sinx\sin x  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 sin(4x)cos5xsin(5x)cos(4x) \sin\left(-4x\right)\cos5x-\sin\left(5x\right)\cos\left(-4x\right)\   Simplify the given expression.

 cos(9x)\cos\left(-9x\right)  

 sinx\sin x  

 cosx\cos x  

 sin(9x)\sin\left(-9x\right)  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 tanθtan6θ1+tanθtan6θ\frac{\tan\theta-\tan6\theta}{1+\tan\theta\tan6\theta}  Simplify the given expression.

 tan(5θ)\tan\left(5\theta\right)  

 tan(7θ)\tan\left(7\theta\right)  

 tan(5θ)-\tan\left(5\theta\right)  

 tan(6θ2)\tan\left(6\theta^2\right)  

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