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

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

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

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

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

int_(0)^(1)(2x)/((1+x^(4)))dx

Evaluate :- int_(0)^(1)(3x^(2)+4)dx

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

int_(0)^(1)x^(2)(1-x)^(3)dx is equal to

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