1 Suppose sin a with a in quadrant I, and cos 3 quadrant II. Find the exact value of cos(a-B). √15-2√2 12 O A. 2√30-1 12 O B. with in 4 √15+2√2 12 1-2√30 12
1 Suppose sin a with a in quadrant I, and cos 3 quadrant II. Find the exact value of cos(a-B). √15-2√2 12 O A. 2√30-1 12 O B. with in 4 √15+2√2 12 1-2√30 12
Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter3: Radian Measure
Section3.1: Reference Angle
Problem 96PS: Use a reference angle to find the exact value of cos210o. a. 12 b. 32 c. 22 d. 12
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