Precalculus (10th Edition)
Precalculus (10th Edition)
10th Edition
ISBN: 9780321979070
Author: Michael Sullivan
Publisher: PEARSON
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Chapter 7.6, Problem 13AYU

In Problems 9 20 , use the information given about the angle θ , 0 θ < 2 π , to find the exact value of:

( a ) sin ( 2 θ ) ( b ) cos ( 2 θ ) ( c ) sin θ 2 ( d ) cos θ 2

cos θ = 6 3 , π 2 < θ < π

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