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

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

Compute the integrals I = int_(-1)^(1) (dx)/(1 + x^(2))

Show that (a) int_(e)^(e^(2))(1)/(log x)dx = int_(1)^(2)(e^(x))/(x)dx (b) int_(t)^(1)(dx)/(1+x^(2)) = int_(1)^(1//t)(dx)/(1+x^(2))

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

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

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

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

Evaluate the integrals int_(-1)^(1)1(dx)/(x^(2)+2x+5)

If I_(1) = int_(1)^(2)(dx)/(sqrt(1+x^(2))) and I_(2)= int_(1)^(2) (dx)/(x) then