7*x
-------------- + asin(7*x)
___________
/ 2
\/ 1 - 49*x
$$\frac{7 x}{\sqrt{1 - 49 x^{2}}} + \operatorname{asin}{\left(7 x \right)}$$
/ 2 \
| 49*x |
7*|2 + ---------|
| 2|
\ 1 - 49*x /
-----------------
___________
/ 2
\/ 1 - 49*x
$$\frac{7 \left(\frac{49 x^{2}}{1 - 49 x^{2}} + 2\right)}{\sqrt{1 - 49 x^{2}}}$$
/ 2 \
| 147*x |
343*x*|4 - ----------|
| 2|
\ -1 + 49*x /
----------------------
3/2
/ 2\
\1 - 49*x /
$$\frac{343 x \left(- \frac{147 x^{2}}{49 x^{2} - 1} + 4\right)}{\left(1 - 49 x^{2}\right)^{\frac{3}{2}}}$$