int(x^(3)sin(tan^(-1)x^(4)))/(x)dx=

int(x^(3)sin[tan^(-1)(x^(4))])/(1+x^(8))dx=

int(x^(3)sin[tan^(-1)(x^(4))])/(1+x^(8))dx=

Evaluate int(4x^(3)sin(tan^(-1)(x^(4))))/(1+x^(8))dx

int(x^(3)sin[tan^(-1)(x^(4))])/(1+x^(8))dx is equal to : a) 1/4cos[tan^(-1)(x^(4))]+c b) 1/4sin[tan^(-1)(x^(4))]+c c) -1/4cos[tan^(-1)(x^(4))]+c d) 1/4sec^(-1)[tan^(-1)(x^(4))]+c

int x^(3)(tan^(-1)x)dx

int(x tan^(-1)x^(2))/(1+x^(4))dx

Evaluate: (i) int(cos sqrt(x))/(sqrt(x))dx (ii) int((sin(tan^(-1)x))/(1+x^(2))dx

int x^(3)sin(x^(4)+1)dx