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Unit 5: Trig Identities Review

Authored by Julie-Lynn Bourquin

Mathematics

10th - 12th Grade

CCSS covered

Used 30+ times

Unit 5: Trig Identities Review
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7 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If  tanθ=34\tan\theta=-\frac{3}{4}  on the interval  (π2, π)\left(\frac{\pi}{2},\ \pi\right)  find  secθ\sec\theta  .

 35-\frac{3}{5}  

 54\frac{5}{4}  

 54-\frac{5}{4}  

 35\frac{3}{5}  

Tags

CCSS.HSF.TF.A.2

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve 2sinx+1=02\sin x+1=0  on the interval  [o, 2π]\left[o,\ 2\pi\right]  

 7π6,11π6\frac{7\pi}{6},\frac{11\pi}{6}  

 π6,5π6\frac{\pi}{6},\frac{5\pi}{6}  

 π3,2π3\frac{\pi}{3},\frac{2\pi}{3}  

 4π3, 5π3\frac{4\pi}{3},\ \frac{5\pi}{3}  

Tags

CCSS.HSF.TF.B.7

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 1sinθ11sinθ+1\frac{1}{\sin\theta-1}-\frac{1}{\sin\theta+1}  Simplify

 2csc2θ2\csc^2\theta  

 2csc2θ-2\csc^2\theta  

 2sec2θ2\sec^2\theta  

 2sec2 θ-2\sec^{2\ }\theta  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find an expression equivalent to
                 sec2θtanθ+cot2θtanθ\frac{\sec^2\theta}{\tan\theta+\cot^2\theta\tan\theta}                  containing only one trig function.

 sinθ\sin\theta  

 cosθ\cos\theta  

 tanθ\tan\theta  

 cotθ\cot\theta  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3

CCSS.HSF.IF.C.8

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If sinθ=45 \sin\theta=-\frac{4}{5}\  on the interval  (π, 3π2)\left(\pi,\ \frac{3\pi}{2}\right)  , find the exact value of  tan2θ\tan2\theta  . 

 247-\frac{24}{7}  

 247\frac{24}{7}  

 487-\frac{48}{7}  

 487\frac{48}{7}  

Tags

CCSS.HSF.TF.C.9

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve

 2cosxsin2 x+2=02\cos x-\sin^{2\ }x+2=0  

for all values from (0, 2pi)

 3π2\frac{3\pi}{2}  

 π2\frac{\pi}{2}  

 π-\pi  

 π\pi  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify     1cos2θ1sin2θ\frac{1-\cos^2\theta}{1-\sin^2\theta}  

 cotθ\cot\theta  

 cot2θ\cot^2\theta  

 tanθ\tan\theta  

 tan2θ\tan^2\theta  

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