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Question

Find dydx for y=log(1+x2)log(1x2).

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Solution

Given,
y=log(1+x2)log(1x2)
Now differentiating both sides with respect to x we get,
dydx=2x1+x2(2x)1x2
or, dydx=2x1+x2+(2x)1x2
or, dydx=4x1x4.

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