Posted by **Jen** on Saturday, January 21, 2012 at 7:06pm.

Please explain to me how to get this -- what quadrant tan theta < 0, sin theta < 0 is in.

- trig -
**bobpursley**, Saturday, January 21, 2012 at 7:52pm
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 -

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