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July 5, 2015

Homework Help: Math

Posted by Hannah on Friday, March 5, 2010 at 2:54pm.

Perform the multiplication and use the fundamental identities to simplify.

(cotx + cscx)(cotx-cscx)

I know that you have to foil first so

cot^2x - csc^2x and then use the pythagorean identity 1+cot^2u = csc^2u but I do not know how to simplify.

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