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Math Help - Unit circle

  1. #1
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    Unit circle

    If , then provide numerical values for each of the following. Notice that for the first two expressions the denominator is already included.

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    i dont know understand the question,what do they want?i went to french school my whole life till this year
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  2. #2
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  3. #3
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    i still dont understand, can someone just do the first number so that i can understand the others???? gaw
    Last edited by wannous; September 29th 2009 at 05:00 PM.
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  4. #4
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    Quote Originally Posted by wannous View Post
    i still dont understand, can someone just do the first number so that i can understand the others???? gaw
    Find the exact value of  \sin \left( \frac{5 \pi}{4} \right) , \cos \left( \frac{5 \pi}{4} \right), \tan \left( \frac{5 \pi}{4} \right) and \sec \left( \frac{5 \pi}{4} \right).

    Either use the symmetry of the unit circle or use the figure provided in a previous post.
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