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Math Help - Express logarithm in terms of x,y,z....not sure what that means

  1. #1
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    Express logarithm in terms of x,y,z....not sure what that means

    Question:
    Express (equation) in terms of logarithms of x,y, and z.

    I've attached the equation and my solution. My solution is not complete cause I don't know if that's what the question is asking. It's asking to express x = equation right? (like I've shown in the attachment). So I express it in terms of x,y,and z?
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  2. #2
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    ln (x^3 * y^-5 * z^-9)^(1,4)
    ln [(x^3) + ln (y^-5) + ln (z^-9)] / 4

    It is (3lnx-5lny-9lnz)/4
    Last edited by nrslmz; December 18th 2008 at 08:48 AM.
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  3. #3
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    Thanks, I think you meant (3lnx-5lny+9lnz)/4.
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  4. #4
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    No, according to your first post, it should be (3lnx-5lny-9lnz)/4, since the power of z under ln is negative
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  5. #5
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    Ahhh, Thanks.
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