1
----------------
________
2 / 1
x * / 1 - --
/ 2
\/ x
$$\frac{1}{x^{2} \sqrt{1 - \frac{1}{x^{2}}}}$$
/ 1 \
-|2 + -----------|
| 2 / 1 \|
| x *|1 - --||
| | 2||
\ \ x //
-------------------
________
3 / 1
x * / 1 - --
/ 2
\/ x
$$- \frac{2 + \frac{1}{x^{2} \left(1 - \frac{1}{x^{2}}\right)}}{x^{3} \sqrt{1 - \frac{1}{x^{2}}}}$$
3 7
6 + ------------ + -----------
2 2 / 1 \
4 / 1 \ x *|1 - --|
x *|1 - --| | 2|
| 2| \ x /
\ x /
------------------------------
________
4 / 1
x * / 1 - --
/ 2
\/ x
$$\frac{1}{x^{4} \sqrt{1 - \frac{1}{x^{2}}}} \left(6 + \frac{7}{x^{2} \left(1 - \frac{1}{x^{2}}\right)} + \frac{3}{x^{4} \left(1 - \frac{1}{x^{2}}\right)^{2}}\right)$$