tan^2A/(1+tan^2A) + cot^2A/(1+cot^2A)
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1−tan2xcot2x−1=1−sin2xcos2xcos2xsin2x−1=cos2x−sin2xcos2xcos2x−sin2xsin2x=sin2xcos2x=tan2x1-tan2xcot2x-1=1-sin2xcos2xcos2xsin2x-1=cos2x-sin2xcos2xcos2x-sin2xsin2x=sin2xcos2x=tan2x
ratikantjhahisp5x7tl:
answer is 1
it's wrong
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