`int_0^(pi/4) (1)/(1-sinx)dx`

Find the value of the following: int_0^(pi/4) dx/(1-sinx)

int_0^(pi/2) (dx)/(4+sinx)

int_(0)^(pi)(x)/(1+sinx)dx .

int_0^(pi/2) cosx/(1+sinx)dx

Evaluate int_(0)^(pi//4)(dx)/(1+sinx)

Evaluate: int_0^(pi//4)sqrt(1+sin2x)dx (ii) int_0^(pi//4)sqrt(1-sin2x)dx

Evaluate : int_0^pi1/(1+sinx)dx

Evaluate : int_0^pi1/(1+sinx)dx

Evaluate : int_0^pi1/(1+sinx)dx

int_0^1(tan^(-1)x)/x dx is equals to (a) int_0^(pi/2)(sinx)/x dx (b) int_0^(pi/2)x/(sinx)dx (c) 1/2int_0^(pi/2)(sinx)/x dx (d) 1/2int_0^(pi/2)(""x)/(sinx)dx