Question 44631
1/tan(-{{{pi}}}/6)
1/(-1*tan({{{pi}}})/6))
1/(-{{{sqrt(3)}}}/3)
{{{-3/sqrt(3)}}}
{{{ graph( 300, 300, -2(3.141592653), 2(3.141592653), -10, 10, cos(x)/sin(x) ) }}}