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Math Help - Please help with Trig question!

  1. #1
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    Smile Please help with sec, cos and tan question?

    Hi, I would really appriciate some help with this question. I am confused about how to solve it. Thank you so much!!

    Question: Prove the following algebraically:

    sec x - sin x tan x= cos x
    Last edited by Polkadotprincess19; May 26th 2010 at 10:11 AM.
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  2. #2
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    Quote Originally Posted by Polkadotprincess19 View Post
    Hi, I would really appriciate some help with this question. I am confused about how to solve it. Thank you so much!!

    Question: Prove the following algebraically:

    sec x - sin x tan x= cos x
    \frac{1}{\cos(x)} - \frac{\sin^2(x)}{\cos(x)} = \frac{1-\sin^2(x)}{\cos(x)}

    Use the Pythagorean Identity to simplify
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  3. #3
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    Thank you!
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