int(x^(3)+x+1)/(x^(4)+3x^(2)+2)dx

int(x^(3))/(x^(4)+x^(2)+1)dx

int(x^(3))/(x^(4)+x^(2)+1)dx

int(x^(2)-1)/((x^(4)+3x^(2)+1)tan^(-1)(x+(1)/(x)))dx=

I=int(2x^(3)+4x+1)/(x)dx

int (4x^(2) +x+1)/(x^(3) -1) dx=?

Evaluate: (i) int(5x^(2) + 2x^(-5) - 7x + 1/(sqrt(x)) +5/x) dx (ii) int(3sinx - 4 cosx + 5 sec^(2) x - 2cosec^(2)x) dx (iii) int(1-x)(2+3x)(5-4x)dx (iv) int((3x^(4) - 5x^(3) + 4x^(2) -x + 2)/(x^(3)))dx , (v) int(x^(2) + 1/(x^(2)))^(3) dx

int_(1)^(4)(3x^(2)+2x)dx

int(3x^(2)+1)/(x(x^(2)+1))dx

int(3x^(13)+2x^(11))/((2x^(4)+3x^(2)+1)^(4))dx