Question 1014140

Find the periods of Cos πx / 2.
<pre>{{{cos ((pi * x)/2)}}} -------> {{{matrix(1,5,"cos", "(",pi/2,x,")")}}}
Period: {{{(2*pi)/matrix(1,3,coefficient, on, x)}}}
Period: {{{(2*pi)/(pi/2))}}} -------> {{{(2pi) * (2/pi)}}} ------ > {{{(2cross(pi)) * (2/cross(pi))}}} -------> {{{highlight_green(highlight(4)))}}}