Simplify (1-cosΘ)(1+cosΘ) / (1-sinΘ)/(1+sinΘ)?

asked Apr 12, 2016 89.5k views

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$((1-cosx)(1+cosx))/((1-sinx)(1+sinx)) \\ \\ (1-cos^2x)/(1-sin^2x) \\ \\ (sin^2x)/(cos^2x) \\ \\ tan^2x$

PopcornKing answered Apr 18, 2016