1
------------------------
________
/ 1 / 2\
x* / 1 + -- *\1 + x /
/ 2
\/ x
$$\frac{1}{x \sqrt{1 + \frac{1}{x^{2}}} \left(x^{2} + 1\right)}$$
1 2 1
- -- - ------ + -----------
2 2 4 / 1 \
x 1 + x x *|1 + --|
| 2|
\ x /
---------------------------
________
/ 1 / 2\
/ 1 + -- *\1 + x /
/ 2
\/ x
$$\frac{- \frac{2}{x^{2} + 1} - \frac{1}{x^{2}} + \frac{1}{x^{4} \cdot \left(1 + \frac{1}{x^{2}}\right)}}{\sqrt{1 + \frac{1}{x^{2}}} \left(x^{2} + 1\right)}$$
2 5 2 3 8*x 4
-- - ----------- + ---------- + ------------ + --------- - --------------------
3 5 / 1 \ / 2\ 2 2 3 / 1 \ / 2\
x x *|1 + --| x*\1 + x / 7 / 1 \ / 2\ x *|1 + --|*\1 + x /
| 2| x *|1 + --| \1 + x / | 2|
\ x / | 2| \ x /
\ x /
-------------------------------------------------------------------------------
________
/ 1 / 2\
/ 1 + -- *\1 + x /
/ 2
\/ x
$$\frac{\frac{8 x}{\left(x^{2} + 1\right)^{2}} + \frac{2}{x \left(x^{2} + 1\right)} + \frac{2}{x^{3}} - \frac{4}{x^{3} \cdot \left(1 + \frac{1}{x^{2}}\right) \left(x^{2} + 1\right)} - \frac{5}{x^{5} \cdot \left(1 + \frac{1}{x^{2}}\right)} + \frac{3}{x^{7} \left(1 + \frac{1}{x^{2}}\right)^{2}}}{\sqrt{1 + \frac{1}{x^{2}}} \left(x^{2} + 1\right)}$$