Solución detallada
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No logro encontrar los pasos en la búsqueda de esta derivada.
Perola derivada
Respuesta:
/ 3\ / 3 \
\x / | 2 9*x *sin(9*x)|
(cos(9*x)) *|3*x *log(cos(9*x)) - -------------|
\ cos(9*x) /
$$\left(- \frac{9 x^{3} \sin{\left(9 x \right)}}{\cos{\left(9 x \right)}} + 3 x^{2} \log{\left(\cos{\left(9 x \right)} \right)}\right) \cos^{x^{3}}{\left(9 x \right)}$$
/ 3\ / 2 2 2 \
\x / | 2 3 / 3*x*sin(9*x)\ 27*x *sin (9*x) 18*x*sin(9*x)|
3*x*(cos(9*x)) *|- 27*x + 2*log(cos(9*x)) + 3*x *|-log(cos(9*x)) + ------------| - --------------- - -------------|
| \ cos(9*x) / 2 cos(9*x) |
\ cos (9*x) /
$$3 x \left(3 x^{3} \left(\frac{3 x \sin{\left(9 x \right)}}{\cos{\left(9 x \right)}} - \log{\left(\cos{\left(9 x \right)} \right)}\right)^{2} - \frac{27 x^{2} \sin^{2}{\left(9 x \right)}}{\cos^{2}{\left(9 x \right)}} - 27 x^{2} - \frac{18 x \sin{\left(9 x \right)}}{\cos{\left(9 x \right)}} + 2 \log{\left(\cos{\left(9 x \right)} \right)}\right) \cos^{x^{3}}{\left(9 x \right)}$$
/ 3\ / 3 3 3 3 2 2 / 2 2 \\
\x / | 2 6 / 3*x*sin(9*x)\ 486*x *sin(9*x) 486*x *sin (9*x) 243*x *sin (9*x) 54*x*sin(9*x) 3 / 3*x*sin(9*x)\ | 2 18*x*sin(9*x) 27*x *sin (9*x)||
3*(cos(9*x)) *|- 243*x + 2*log(cos(9*x)) - 9*x *|-log(cos(9*x)) + ------------| - --------------- - ---------------- - ---------------- - ------------- + 9*x *|-log(cos(9*x)) + ------------|*|-2*log(cos(9*x)) + 27*x + ------------- + ---------------||
| \ cos(9*x) / cos(9*x) 3 2 cos(9*x) \ cos(9*x) / | cos(9*x) 2 ||
\ cos (9*x) cos (9*x) \ cos (9*x) //
$$3 \left(- 9 x^{6} \left(\frac{3 x \sin{\left(9 x \right)}}{\cos{\left(9 x \right)}} - \log{\left(\cos{\left(9 x \right)} \right)}\right)^{3} + 9 x^{3} \left(\frac{3 x \sin{\left(9 x \right)}}{\cos{\left(9 x \right)}} - \log{\left(\cos{\left(9 x \right)} \right)}\right) \left(\frac{27 x^{2} \sin^{2}{\left(9 x \right)}}{\cos^{2}{\left(9 x \right)}} + 27 x^{2} + \frac{18 x \sin{\left(9 x \right)}}{\cos{\left(9 x \right)}} - 2 \log{\left(\cos{\left(9 x \right)} \right)}\right) - \frac{486 x^{3} \sin^{3}{\left(9 x \right)}}{\cos^{3}{\left(9 x \right)}} - \frac{486 x^{3} \sin{\left(9 x \right)}}{\cos{\left(9 x \right)}} - \frac{243 x^{2} \sin^{2}{\left(9 x \right)}}{\cos^{2}{\left(9 x \right)}} - 243 x^{2} - \frac{54 x \sin{\left(9 x \right)}}{\cos{\left(9 x \right)}} + 2 \log{\left(\cos{\left(9 x \right)} \right)}\right) \cos^{x^{3}}{\left(9 x \right)}$$