`int_(-1)^(1)(x^(2)+sin x)dx=`

The value of int_(-1)^(1)((x^(2)+ sin x)/(1+x^(2)))dx is equal to

int_(-1)^(1)(x^(2)+sin x)/(1+x^(2))dx=

The value of int_(-1)^(1)((x^(2)+sin x)/(1+x^(2)))dx is equal to

int_(-1)^(1)(x^(2)sin x)/(1+cos x) dx

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

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

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

show that (a) int_(0) ^(2pi) sin ^(3) x dx = 0 , (b) int_(-1)^(1) e^(-x^(2)) dx = 2 int_(0)^(1) e^(-x^(2)) dx