Multiple Choice Questions on cosec 2A times cos 2A ........ for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

cosec 2A times cos 2A ........

Quantitative Aptitude (RRB NTPC) Trignometry
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    cosec^2A × cos^2A = ?

    tan^2A

    Incorrect Answer

    cot^2A

    Incorrect Answer

    1

    Incorrect Answer

    sec^2A

    Correct Answer
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    Explanation:
    cosec^2A*cos^2A
    =1/sin^2a*cos^2A
    =cot^2A

    By: Barka Mirza
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