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

int_(2)^(4) (3x^(2)+1)/((x^(2)-1)^(3))dx = (lambda)/(n^(2)) where lambda, n in N and gcd(lambda,n) = 1 , then find the value of lambda + n

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

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

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

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

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

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

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