1. (a) Show that sin(3x)=3sin x−4 sin³ x . (b) Hence, if sin A=- 5 13 و determine the exact value of sin 3 A
1. (a) Show that sin(3x)=3sin x−4 sin³ x . (b) Hence, if sin A=- 5 13 و determine the exact value of sin 3 A
Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter8: Complex Numbers And Polarcoordinates
Section8.3: Products And Quotients In Trigonometric Form
Problem 62PS
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