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Math Help - Sinusoidal Functions

  1. #1
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    Sinusoidal Functions

    Hi i need help with this problem my test is tomorrow and i am trying to figure out if i am right i have attached the file and the problem is number 13

    i got y=-1+8cos pi/35(x-5)

    thank you for your help!
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  2. #2
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    Re: Sinusoidal Functions

    Sounds fair to me.
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  3. #3
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    yes you are absolutely correct

    no kidding, I've worked it out.

    y = ({8})( {cos\frac{\pi(x-5)}{\35})} -1
    Last edited by mr fantastic; October 1st 2011 at 06:24 AM. Reason: Merged posts.
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