int_(-(pi)/(2))^((-)/(2))(dx)/(e^(sin x)+1)" is equal to "

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

int_(-pi//2)^(pi//2)(dx)/(e^(sin x)+1) is equal to

int_-(pi//2)^(pi//2) (dx)/(e^(sinx)+1) is equal to

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

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

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

Examples: int_(-(pi)/(2))^((pi)/(2))(1)/(1+e^(sin x))dx

If int_(0)^((pi)/(2))(dx)/(1+sin x+cos x)=In2, then the value of int_(0)^((pi)/(2))(sin x)/(1+sin x+cos x)dx is equal to:

int_(-(pi)/(2))^((pi)/(2))(e^(|sin x|)cos x)/(1+e^(tan x))dx is equal to (a) e+1 (b) 1-(pi)/(2)e(c)e-1(d) none of these