On the unit circle, where 0 < 932, when is tan > undefined?
O9= and 9= 2*
x
O sin 9-cos 9
O
0 0=and 0-
O sin e-
-37
1
Cos 8

On the unit circle where 0 lt 932 when is tan gt undefined O9 and 9 2 x O sin 9cos 9 O 0 0and 0 O sin e 37 1 Cos 8 class=