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

int(x^(3)dx)/((x^(2)+9^(2)))

int(3x^(2))/(9^(2)+x^(3))dx

int(x^2+3)/(9x^2+4) dx

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

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

int((2x+9))/((x+2)(x-3)^(2))dx

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

int_(1)^(2)(3x)/(9x^(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 (x^(1/3))/((1+x^(4/3))^(9))dx