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Use De Moivre's Theorem to find the identity of the following: a. cos 80 b. sin 90 c. cos 100

Use De Moivre's Theorem to find the identity of the following: a. cos 80 b. sin 90 c. cos 100

Trigonometry (MindTap Course List)
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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Use De Moivre's Theorem to find the identity of the following: a. cos 80 b. sin 90 c. cos 100
Transcribed Image Text:Use De Moivre's Theorem to find the identity of the following: a. cos 80 b. sin 90 c. cos 100
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