The first derivative
[src]
1
-------------
________
/ 2
7*\/ 1 - x
$$\frac{1}{7 \sqrt{1 - x^{2}}}$$
The second derivative
[src]
x
-------------
3/2
/ 2\
7*\1 - x /
$$\frac{x}{7 \left(1 - x^{2}\right)^{\frac{3}{2}}}$$
The third derivative
[src]
/ 2 \
| 3*x |
-|-1 + -------|
| 2|
\ -1 + x /
----------------
3/2
/ 2\
7*\1 - x /
$$- \frac{\frac{3 x^{2}}{x^{2} - 1} - 1}{7 \left(1 - x^{2}\right)^{\frac{3}{2}}}$$