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

int_(2)^(4)(2x^(2)-1)dx

int_(1)^(4)(x^(2)-x)dx

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

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

Examples: int_(2)^(4)(x)/(x^(2)+1)dx

Evaluate: int_(2)^(4)(x)/(x^(2)+1)dx

int(1-2x)^(4)dx

Evaluate: int_(0)^(4)(1)/(x+sqrt(x))dx( ii) int_(0)^(1)(2x)/(5x^(2)+1)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 and I_(4)=int_(1)^(2) 2^(x^(2))dx then

"int_(-1)^(4)(x^(5)+2x^(2)+x)dx