Prove that tan^2Asec^2B-sec^2Atan^2B=tan^2A-tan^2B

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asked Feb 15, 2018 in Mathematics by Kundan kumar (49,132 points) 34 384 1027

Prove that tan2Asec2B-sec2Atan2B=tan2A-tan2B

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answered Feb 15, 2018 by Vikash Kumar (144,729 points) 8 11 21
 
Best answer

  Hence  proved

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