$$ \int_{0} ^ {\pi/4} \frac {\tan^2x}{1+x ^2} dx$$
I have tried using $x=\tan \theta$. But in my opinion i am finding that this might not be closed form. Please help.
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no . in denom it becomes problematic – maveric Dec 20 '18 at 18:26
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what are you saying ? plz check once. i think you are getting confused – maveric Dec 20 '18 at 18:31
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@deepak .it will not solve. – maveric Dec 20 '18 at 18:33
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1Sorry but derivative of $\tan(x)$ is not $\frac{1}{1+x^2}$ – Makina Dec 20 '18 at 18:36
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@DougM Are you confusing tangent and arctangent? – Andrew Li Dec 20 '18 at 18:44
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Definite duplicate. – Dec 20 '18 at 23:33