Find the EXACT trig values For undefined answers input undef
     Find the EXACT trig values. For undefined answers, input \"undefined\" (without the quotes, of course).  tan(120 degree) =  cot(120 degree) =  tan(210 degree) =  cot(210 degree) =  tan(150 degree) =  cot(150 degree) =  tan(60 degree) =  cot(60 degree) =  tan(240 degree) =  cot(240 degree) =  tan(30 degree) =  cot(30 degree) =  tan(135 degree) =  cot(135 degree) =  tan(315 degree) =  cot(315 degree) =  tan(0 degree) =  cot(0 degree) =  tan(90 degree) =  cot(90 degree) =   
  
  Solution
angle Ref angle angle tan cot 120 -60 180 -60 -1.73205081 -0.57735027 210 30 180+30 0.57735027 1.73205081 150 -30 180-150 -0.57735027 -1.73205081 60 60 60 1.73205081 0.57735027 240 60 180+60 1.73205081 0.57735027 30 30 30 0.57735027 1.73205081 135 -45 180-45 -1 -1 315 -45 360-45 -1 -1 0 0 0 0 not defined 90 90 90 not defined 0
