" Evaluate "int_(0)^( pi/2)(sin x)/(sin x+cox)dx

Evaluate: int_(0)^( pi/2)(dx)/(1+sin x)

Evaluate, int_(0)^(pi/2) sin x dx

Evaluate: int_(0)^((pi)/(2))(sin x)/(sin x+cos x)dx

Prove that : int_(0)^(a) f(x) dx = int_(0)^(a) f(a-x)dx hence evaluate : int_(0)^(pi//2) (sin x)/(sin x + cos x) dx

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

Evaluate int_(0)^(pi)[2 sin x]dx

Evaluate : int_(0)^(pi//2) sin x dx