`int_(0)^((pi)/(4))(dx)/(1-sin x)`

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:

The value of definite integral int_(0)^((pi^(2))/(4))(dx)/(1+sin^(2)sqrt(x)+cos^(2)sqrt(x))= is

int_(0)^(1)(tan^(-1)x)/(x)dx is equals to int_(0)^((pi)/(2))(sin x)/(x)dx(b)int_(0)^((pi)/(2))(x)/(sin x)dx(1)/(2)int_(0)^((pi)/(2))(sin x)/(x)dx(d)(1)/(2)int_(0)^((pi)/(2))(x)/(sin x)dx

int_(0)^((pi)/(4))sqrt(1+sin2x)dx

int_(0)^((pi)/(4)) sqrt(1+sin 2x) dx =

int_(0)^(pi)(x sin x)/(1-sin x)dx=

int_(-pi//4)^(pi//4) dx/(1-sin x)=

" 0."int_(0)^( pi/4)(dx)/(2+sin^(2)x)=

Consider A =int_(0)^((pi)/(4))(sin(2x))/(x)dx, then