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Math Help - Finding the exact value using CAS

  1. #1
    Junior Member User Name's Avatar
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    Question Finding the exact value using CAS

    Hi all

    Is there anyway to find th exact value using ti-89?
    I mean without using these two triangles...

    THANKS!
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  2. #2
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    earboth's Avatar
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    Quote Originally Posted by User Name View Post
    Hi all

    Is there anyway to find th exact value using ti-89?
    I mean without using these two triangles...

    THANKS!
    Sorry, but what is the exact question?
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  3. #3
    Junior Member User Name's Avatar
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    Quote Originally Posted by earboth View Post
    Sorry, but what is the exact question?
    Hi man, the exact question is asking to find equation for the tangent and the normal for this:
    Y=3Cos(x/2) while the X= pie

    is any tricks to do in on CAS without going so far?
    Than mate
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