Evaluate `int (dx)/(1+sinx)`

Evaluate int(dx)/(1-3sinx) . Use the substitution sinx=(2"tan"(x)/(2))/(1+"tan"^(2)(x)/(2)) , further put "tan"(x)/(2)=t and then integrate it.

Evaluate int (cos x)/(1 + sinx) dx

Evaluate int(sinx)/(1+sinx)dx

Evaluate : int(dx)/(sqrt(1-sinx))

Evaluate: int_0^pi(dx)/(1+sinx)

Evaluate: int_0^pi(dx)/(1+sinx)

Evaluate: int(sinx)/(1+sinx)\ dx

Evaluate: int(sinx)/(1+sinx)\ dx