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Express-sin-4x-interm-of-sin-x-




Question Number 115253 by aye48 last updated on 24/Sep/20
Express sin 4x interm of sin x.
Expresssin4xintermofsinx.
Answered by Dwaipayan Shikari last updated on 24/Sep/20
sin4x=2sin2xcos2x  =2sinxcosx(1−2sin^2 x)  =2sinx(√(1−sin^2 x)) (1−2sin^2 x)
sin4x=2sin2xcos2x=2sinxcosx(12sin2x)=2sinx1sin2x(12sin2x)

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