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    EM04 Posts: 1, Reputation: 1
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    #1

    Nov 23, 2008, 04:34 PM
    Solving Trig Identities
    I have a test tomorrow and can't solve this question:

    sinxtanx+cosx-secx+1=sec^2xcos^2x
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    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.

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