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April 19, 2014

Homework Help: Trigonometry

Posted by Jasmine on Sunday, January 3, 2010 at 12:39pm.

How do you verify the equation is an identity?
Tan^2x-tan^2y=sec^2x-sec^2y

and, how do you factor and simplify,
cscx(sin^2x+cos^2xtanx)/sinx+cosx

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