April 16, 2014

Homework Help: Pre Calculus

Posted by Alex on Thursday, April 11, 2013 at 9:17pm.

Having trouble verifying this identity...

cscxtanx + secx= 2cosx

This is what I've been trying

(1/sinx)(sinx/cosx) + secx = 2cosx

(1/cosx)+(1/cosx) = 2 cosx

2 secx = 2cosx

that's what i ended up with, but i know it's now right. did i mess up with the algebra?

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