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

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