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March 1, 2015

March 1, 2015

Posted by **Mohd.Zaid** on Monday, April 29, 2013 at 1:58pm.

- math -
**Steve**, Monday, April 29, 2013 at 2:40pmjust expand and see what happens

I'll elide the x's just for ease of typing

sec - sec*sin + tan - tan*sin

sec - tan + tan - tan*sin

sec - sin^2 * sec

sec(1-sin^2)

sec*cos^2

cos

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