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EM04 · Nov 23, 2008, 04:34 PM

I have a test tomorrow and can't solve this question:

sinxtanx+cosx-secx+1=sec^2xcos^2x

ebaines · Nov 24, 2008, 11:49 AM

It helps to put this into simplest terms, so replace all the tan and sec terms with their equivalent sin and cos terms. Then put the left had side over a common denominator of cos(x). You'll see that this complicated-looking equation collapses to a very simple one. Hope this helps.