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February 1, 2015

February 1, 2015

Posted by **Jason** on Tuesday, January 24, 2012 at 11:33pm.

- trig -
**Damon**, Wednesday, January 25, 2012 at 1:46amsin (t+2pi) = sin t

tan(t+pi) = tan t

tan t/sin t = (sin t/cos t)/sin t

= 1/cos t

= sec t

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