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Class 12 chapter 2 miscellaneous example …

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Class 12 chapter 2 miscellaneous example 10

    • Posted by Sanjeev Kamboj 7 years, 3 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Devansh Agrawal 7 years, 2 months ago

    1+ sin x = (cos(x/2) + sin(x/2))^2 1-sin x = (cos(x/2) - sin(x/2))^2 Hence, Cot^-1 ( 2 cos(x/2)/2 sin (x/2)) = cot^-1(cot (x/2)) = x/2

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