`int_(0)^(2) |cos((pix)/(2))|` is

The value of int_(-1//2)^(1//2) |xcos((pix)/(2))|dx is

The value of the integral int_(0)^(1) log sin ((pix)/(2))dx is

int_(0)^(2 pi)|cos x|dx

The period of the function sin""((pix)/(2))+cos((pix)/(2)) , is

Let f(x) be differentiate function symmetric about x=2 , then the value of int_(0)^(4)cos(pix)f'(x)dx is equal to________.

int_(0)^((pi)/(2))x cos xdx

int_(0)^(2 pi)cos^(7)xdx

int_(0)^(2 pi)cos^(4)xdx

int_(0)^((pi)/(2))cos xdx=?