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Respuesta:
cos(3*x) -------- 3 / /3 ___\ cos(3*x)\ x *|- 3*log\\/ x /*sin(3*x) + --------| \ 3*x /
cos(3*x) / / cos(3*x) \ / cos(3*x) /3 ___\ \\ -------- | |- -------- + 3*log(x)*sin(3*x)|*|- -------- + 9*log\\/ x /*sin(3*x)|| 3 | /3 ___\ 2*sin(3*x) cos(3*x) \ x / \ x /| x *|- 9*cos(3*x)*log\\/ x / - ---------- - -------- + ---------------------------------------------------------------------| | x 2 9 | \ 3*x /
/ 2 / cos(3*x) /3 ___\ \ /cos(3*x) 6*sin(3*x) \ / cos(3*x) \ /cos(3*x) 6*sin(3*x) /3 ___\\\ cos(3*x) | / cos(3*x) \ / cos(3*x) /3 ___\ \ |- -------- + 9*log\\/ x /*sin(3*x)|*|-------- + ---------- + 9*cos(3*x)*log(x)| 2*|- -------- + 3*log(x)*sin(3*x)|*|-------- + ---------- + 27*cos(3*x)*log\\/ x /|| -------- | |- -------- + 3*log(x)*sin(3*x)| *|- -------- + 9*log\\/ x /*sin(3*x)| \ x / | 2 x | \ x / | 2 x || 3 | 9*cos(3*x) 3*sin(3*x) /3 ___\ \ x / \ x / \ x / 2*cos(3*x) \ x /| x *|- ---------- + ---------- + 27*log\\/ x /*sin(3*x) - ---------------------------------------------------------------------- + -------------------------------------------------------------------------------- + ---------- + -----------------------------------------------------------------------------------| | x 2 27 9 3 9 | \ x 3*x /