Use a Pythagorean Identity to Find cos ? , given that sin ? = − 5 and ? is in QIV
Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter1: Trigonometry
Section1.4: Trigonometric Functions Of Any Angle
Problem 2ECP: Given sin =45 and tan 0, find cos and tan .
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Use a Pythagorean Identity to Find cos ? , given that sin ? = − 5
and ? is in QIV
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