Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Let sinθ= 2√2/5  and π/2 < θ < π

Part A: Determine the exact value of cos 2θ.

Part B: Determine the exact value of sin (θ/2)

PLEASE ANSWER ON PAPER!!!! REFER TO THE IMAGE!!!

Let sine=
2√2
5
and
2
<< T
Part A: Determine the exact value of cos 20.
Part B: Determine the exact value of sin
O|N
2
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Transcribed Image Text:Let sine= 2√2 5 and 2 << T Part A: Determine the exact value of cos 20. Part B: Determine the exact value of sin O|N 2
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