01-12-2017
Mathematics

contestada

trig identities how to prove 1- (sin^2x)/(1+cosx)= cosx

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zizoux07p0ac3m zizoux07p0ac3m

01-12-2017

both sides aren't equal because 1-sin^2x = cos^2x and cos^2x / 1+cosx can never equal cosx

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