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

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

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

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

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

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

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

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

Evaluate : (i) int(3x^(2))/((1+x^(6)))dx (ii) int(x^(3))/((x^(2)+1)^(3))dx (iii) (x^(8))/((1-x^(3))^(1//3))dx

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