((sin x)^2 - (cos x)^2) / (sin x- cos x) = sin x + cos x

I want to change the LHS only.

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- Jul 24th 2010, 07:35 AMStuck Manidentity
((sin x)^2 - (cos x)^2) / (sin x- cos x) = sin x + cos x

I want to change the LHS only. - Jul 24th 2010, 07:50 AMFailure