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1+sinA. 1- sinA/1+cosA.1-cosA

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1+sinA. 1- sinA/1+cosA.1-cosA

    • Posted by Sunny Kumar 7 years, 1 month ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Chesta Pawan Manchanda 7 years, 1 month ago

    1+sinA×1-sinA/1+cosA×1-cosA=1^2-sin^2/1^2-cosA^2 by ((a+b)(a-b)=a^2-b^2) then cos^2A/sin^2A=cot^2A hence 1+sinA×1-sinA/1+cosA×1-cosA=cot2A

    1Thank You

    Nikhil Yadav 7 years, 1 month ago

    Me to

    3Thank You

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