The value of the integral `int_(0)^(pi) (sin k x)/(sin x)dx` (k is an even integer) is equal to

The value of the integral int_(0)^(pi) | sin 2x| dx is

The value of the integral int_(0)^(pi)x log sin x dx is

The value of the integral int_(0)^(pi)(1-|sin 8x|)dx is

The value of the integral int_(0)^(2pi)(sin x+|sin x|)dx is equal to -

The value of integral int_(0)^( pi)xf(sin x)dx=

The value of the integral overset(pi)underset(0)int (sin k x)/(sin x)dx (k is an even integer) is equal to

The value of the integral int_(0) ^(pi//2) sin ^3 x dx is :

The value of the integral int_(0) ^(pi//2) sin ^3 x dx is :

The value of the integral int _(0)^(pi//2) sin ^(5) x dx is

int_(0)^( pi)(sin nx)/(sin x)dx is equal to