" 1."int_(1)^(2)x^(2)dx

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

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

Evaluate : int _(-1)^(2)|1-x^(2)|dx

Evaluate int_(-1)^(1)(x^2)/(x^2+1)dx .

Evaluate : int_(-1)^(1)(x^(2))/(1+x^(2))dx

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

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

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

int_(-1)^(1) |x^(2)-3x+2|dx =

If I_(1) = int_(0)^(1) 2^(x^(2))dx, I_(2) = int_(0)^(1) 2^(x^(3))dx , I_(3) = int_(1)^(2) 2^(x^(2))dx, I_(4)=int_(1)^(2) 2^(x^(3))dx then