2 2
cos (4) 12*x*cos (4)
---------- + -------------------------
2 ___________
acos (6*x) / 2 3
\/ 1 - 36*x *acos (6*x)
$$\frac{12 x \cos^{2}{\left(4 \right)}}{\sqrt{1 - 36 x^{2}} \operatorname{acos}^{3}{\left(6 x \right)}} + \frac{\cos^{2}{\left(4 \right)}}{\operatorname{acos}^{2}{\left(6 x \right)}}$$
2 / 1 / 1 2*x \\
24*cos (4)*|-------------- + 9*x*|- ---------------------- + --------------||
| ___________ | / 2\ 3/2||
| / 2 | \-1 + 36*x /*acos(6*x) / 2\ ||
\\/ 1 - 36*x \ \1 - 36*x / //
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3
acos (6*x)
$$\frac{24 \left(9 x \left(\frac{2 x}{\left(1 - 36 x^{2}\right)^{\frac{3}{2}}} - \frac{1}{\left(36 x^{2} - 1\right) \operatorname{acos}{\left(6 x \right)}}\right) + \frac{1}{\sqrt{1 - 36 x^{2}}}\right) \cos^{2}{\left(4 \right)}}{\operatorname{acos}^{3}{\left(6 x \right)}}$$
/ / 2 \ \
2 | 3 | 1 12 108*x 54*x | 6*x |
216*cos (4)*|- ---------------------- + 2*x*|-------------- + ------------------------- + -------------- + -----------------------| + --------------|
| / 2\ | 3/2 3/2 5/2 2 | 3/2|
| \-1 + 36*x /*acos(6*x) |/ 2\ / 2\ 2 / 2\ / 2\ | / 2\ |
\ \\1 - 36*x / \1 - 36*x / *acos (6*x) \1 - 36*x / \-1 + 36*x / *acos(6*x)/ \1 - 36*x / /
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3
acos (6*x)
$$\frac{216 \left(2 x \left(\frac{108 x^{2}}{\left(1 - 36 x^{2}\right)^{\frac{5}{2}}} + \frac{54 x}{\left(36 x^{2} - 1\right)^{2} \operatorname{acos}{\left(6 x \right)}} + \frac{1}{\left(1 - 36 x^{2}\right)^{\frac{3}{2}}} + \frac{12}{\left(1 - 36 x^{2}\right)^{\frac{3}{2}} \operatorname{acos}^{2}{\left(6 x \right)}}\right) + \frac{6 x}{\left(1 - 36 x^{2}\right)^{\frac{3}{2}}} - \frac{3}{\left(36 x^{2} - 1\right) \operatorname{acos}{\left(6 x \right)}}\right) \cos^{2}{\left(4 \right)}}{\operatorname{acos}^{3}{\left(6 x \right)}}$$