2
4*t 3 3*t
-1 + ------ + ------------------- + ------------------
2 / 2\ 2 / 2\
1 + t 8*\1 + t /*atan (t) 2*\1 + t /*atan(t)
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2
/ 2\ _________
\1 + t / *\/ atan(t)
$$\frac{1}{\left(t^{2} + 1\right)^{2} \sqrt{\operatorname{atan}{\left (t \right )}}} \left(\frac{4 t^{2}}{t^{2} + 1} + \frac{3 t}{2 \left(t^{2} + 1\right) \operatorname{atan}{\left (t \right )}} - 1 + \frac{3}{8 \left(t^{2} + 1\right) \operatorname{atan}^{2}{\left (t \right )}}\right)$$