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