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Thread: Eliminate the Parameter

  1. January 19th 2009, 01:14 PM #1
    sfgiants13
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    Eliminate the Parameter

    for x=(e^t) -1 y=e^2t

    Is this a case of using natural logs to find t and substitute it into one of the equations?
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  2. January 19th 2009, 01:19 PM #2
    Danny
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    Quote Originally Posted by sfgiants13 View Post
    for x=(e^t) -1 y=e^2t

    Is this a case of using natural logs to find t and substitute it into one of the equations?
    It's not really necessary. From the first

    e^t = x+1

    the second

    y = e^{2t} = \left(e^t \right)^2 = (x+1)^2
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