Posted by **Nathan** on Sunday, May 22, 2011 at 5:37pm.

How do I name the quadrand in which angle thada may lie if sec thada > 0 and tan thada > 0?

- trig -
**Henry**, Sunday, May 22, 2011 at 7:57pm
sec(theta)>0 in Q1, and Q4.

tan(theta)>0 Q1,and Q3.

Theta lies in Q1, because it satisfies both conditions.

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