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If tan^-1 ( root of 1+x^2 …

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If tan^-1 ( root of 1+x^2 - root of 1-x^2 / root of 1+x^2 + root of 1-x^2)=a,prove that x ^2 = sin 2a

    • Posted by Prasanta Acharjee 8 years, 1 month ago

    CBSE > Class 12 > Mathematics
    • 0 answers
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