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# Evaluate the foll

Tip – If f1(x) and f2(x) are two functions , then an integral of the form can be INTEGRATED BY PARTS as where f1(x) and f2(x) are the first and second functions respectively.

Taking f1(x) = sin-1x and f2(x) = 1/x2,    Taking x= sina, dx = cosada

Hence, coseca=1/x

Now, cosec2a-cot2a = 1 so cota=√(1-x2)/x    Replacing the value of a, we get,  The total integration yields as , where c is the integrating constant

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