Question 873668
Since tan(x) = sin(x)/cos(x), the asymptotes of this function are found at the points where cos(x) = 0
In this case, replace x with {{{4x - pi}}}
The zeros of the cosine function are at {{{n*pi/2}}} n=1,3,5...
{{{4x-pi = pi/2 -> x = 3*pi/8}}}
{{{4x-pi = 3*pi/2 -> x = 5*pi/8}}}