Question
$\int_{ - \frac{1}{2}}^{\,\frac{1}{2}} {\cos x\,\ln \frac{{1 + x}}{{1 - x}}dx} = $
$\cos x\ln \left( {\frac{{1 + x}}{{1 - x}}} \right)$ एक विषम फलन है, $( \because f( - x) = - f(x) )$
$\therefore$ $I = 0$.
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