4/3\
15*acos |-|
\x/
----------------
________
2 / 9
x * / 1 - --
/ 2
\/ x $$\frac{15 \operatorname{acos}^{4}{\left (\frac{3}{x} \right )}}{x^{2} \sqrt{1 - \frac{9}{x^{2}}}}$$
/ /3\ /3\ \
| 2*acos|-| 9*acos|-| |
3/3\ | \x/ 12 \x/ |
15*acos |-|*|- ------------- + ---------- - --------------|
\x/ | ________ / 9 \ 3/2|
| / 9 x*|1 - --| 2 / 9 \ |
| / 1 - -- | 2| x *|1 - --| |
| / 2 \ x / | 2| |
\ \/ x \ x / /
-----------------------------------------------------------
3
x $$\frac{15}{x^{3}} \left(- \frac{2 \operatorname{acos}{\left (\frac{3}{x} \right )}}{\sqrt{1 - \frac{9}{x^{2}}}} + \frac{12}{x \left(1 - \frac{9}{x^{2}}\right)} - \frac{9 \operatorname{acos}{\left (\frac{3}{x} \right )}}{x^{2} \left(1 - \frac{9}{x^{2}}\right)^{\frac{3}{2}}}\right) \operatorname{acos}^{3}{\left (\frac{3}{x} \right )}$$
/ 2/3\ /3\ /3\ 2/3\ 2/3\ \
| 2*acos |-| 108*acos|-| 24*acos|-| 21*acos |-| 81*acos |-| |
2/3\ | \x/ 36 \x/ \x/ \x/ \x/ |
45*acos |-|*|------------- + -------------- - ------------ - ---------- + -------------- + --------------|
\x/ | ________ 3/2 2 / 9 \ 3/2 5/2|
| / 9 2 / 9 \ 3 / 9 \ x*|1 - --| 2 / 9 \ 4 / 9 \ |
| / 1 - -- x *|1 - --| x *|1 - --| | 2| x *|1 - --| x *|1 - --| |
| / 2 | 2| | 2| \ x / | 2| | 2| |
\\/ x \ x / \ x / \ x / \ x / /
----------------------------------------------------------------------------------------------------------
4
x $$\frac{45}{x^{4}} \left(\frac{2 \operatorname{acos}^{2}{\left (\frac{3}{x} \right )}}{\sqrt{1 - \frac{9}{x^{2}}}} - \frac{24 \operatorname{acos}{\left (\frac{3}{x} \right )}}{x \left(1 - \frac{9}{x^{2}}\right)} + \frac{21 \operatorname{acos}^{2}{\left (\frac{3}{x} \right )}}{x^{2} \left(1 - \frac{9}{x^{2}}\right)^{\frac{3}{2}}} + \frac{36}{x^{2} \left(1 - \frac{9}{x^{2}}\right)^{\frac{3}{2}}} - \frac{108 \operatorname{acos}{\left (\frac{3}{x} \right )}}{x^{3} \left(1 - \frac{9}{x^{2}}\right)^{2}} + \frac{81 \operatorname{acos}^{2}{\left (\frac{3}{x} \right )}}{x^{4} \left(1 - \frac{9}{x^{2}}\right)^{\frac{5}{2}}}\right) \operatorname{acos}^{2}{\left (\frac{3}{x} \right )}$$