3 2
x - x 3 2
14*3 *acos(7*x) x - x 2 / 2\
- --------------------- + 3 *acos (7*x)*\-2*x + 3*x /*log(3)
___________
/ 2
\/ 1 - 49*x
$$3^{x^{3} - x^{2}} \cdot \left(3 x^{2} - 2 x\right) \log{\left(3 \right)} \operatorname{acos}^{2}{\left(7 x \right)} - \frac{14 \cdot 3^{x^{3} - x^{2}} \operatorname{acos}{\left(7 x \right)}}{\sqrt{- 49 x^{2} + 1}}$$
2
x *(-1 + x) / 98 2 / 2 2 \ 686*x*acos(7*x) 28*x*(-2 + 3*x)*acos(7*x)*log(3)\
3 *|- ---------- + acos (7*x)*\-2 + 6*x + x *(-2 + 3*x) *log(3)/*log(3) - --------------- - --------------------------------|
| 2 3/2 ___________ |
| -1 + 49*x / 2\ / 2 |
\ \1 - 49*x / \/ 1 - 49*x /
$$3^{x^{2} \left(x - 1\right)} \left(\left(x^{2} \left(3 x - 2\right)^{2} \log{\left(3 \right)} + 6 x - 2\right) \log{\left(3 \right)} \operatorname{acos}^{2}{\left(7 x \right)} - \frac{28 x \left(3 x - 2\right) \log{\left(3 \right)} \operatorname{acos}{\left(7 x \right)}}{\sqrt{- 49 x^{2} + 1}} - \frac{686 x \operatorname{acos}{\left(7 x \right)}}{\left(- 49 x^{2} + 1\right)^{\frac{3}{2}}} - \frac{98}{49 x^{2} - 1}\right)$$
2 / 2 / 2 2 \ \
x *(-1 + x) | 686*acos(7*x) 14406*x 2 / 3 3 2 \ 100842*x *acos(7*x) / 1 7*x*acos(7*x) \ 42*\-2 + 6*x + x *(-2 + 3*x) *log(3)/*acos(7*x)*log(3)|
3 *|- -------------- + ------------- + acos (7*x)*\6 + x *(-2 + 3*x) *log (3) + 6*x*(-1 + 3*x)*(-2 + 3*x)*log(3)/*log(3) - ------------------- - 294*x*(-2 + 3*x)*|---------- + --------------|*log(3) - ------------------------------------------------------|
| 3/2 2 5/2 | 2 3/2| ___________ |
| / 2\ / 2\ / 2\ |-1 + 49*x / 2\ | / 2 |
\ \1 - 49*x / \-1 + 49*x / \1 - 49*x / \ \1 - 49*x / / \/ 1 - 49*x /
$$3^{x^{2} \left(x - 1\right)} \left(- 294 x \left(3 x - 2\right) \left(\frac{7 x \operatorname{acos}{\left(7 x \right)}}{\left(- 49 x^{2} + 1\right)^{\frac{3}{2}}} + \frac{1}{49 x^{2} - 1}\right) \log{\left(3 \right)} + \left(x^{3} \left(3 x - 2\right)^{3} \log{\left(3 \right)}^{2} + 6 x \left(3 x - 2\right) \left(3 x - 1\right) \log{\left(3 \right)} + 6\right) \log{\left(3 \right)} \operatorname{acos}^{2}{\left(7 x \right)} - \frac{42 \left(x^{2} \left(3 x - 2\right)^{2} \log{\left(3 \right)} + 6 x - 2\right) \log{\left(3 \right)} \operatorname{acos}{\left(7 x \right)}}{\sqrt{- 49 x^{2} + 1}} + \frac{14406 x}{\left(49 x^{2} - 1\right)^{2}} - \frac{100842 x^{2} \operatorname{acos}{\left(7 x \right)}}{\left(- 49 x^{2} + 1\right)^{\frac{5}{2}}} - \frac{686 \operatorname{acos}{\left(7 x \right)}}{\left(- 49 x^{2} + 1\right)^{\frac{3}{2}}}\right)$$