Posted by Jen on .
Please explain to me how to get this  what quadrant tan theta < 0, sin theta < 0 is in.

trig 
bobpursley,
tan theta is negative. Which means either
sinT is , or cosT is neg, but not both.
sinT is  when quadrant III, IV
cosT is  in II, III
so answer is IV where sin is , cos is not 