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