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December 21, 2014

December 21, 2014

Posted by **CJ** on Thursday, January 13, 2011 at 5:27pm.

- Trigonometry -
**Reiny**, Thursday, January 13, 2011 at 5:35pmLS = cosx + sinx(sinx/cosx)

= (cos^2x + sin^2x)/cosx

= 1/cosx

= sec x

= RS

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