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Math Help - logs and expo

  1. #1
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    logs and expo

    Write each expression as a sum and/or difference of logarithms. Express powers as factors and simplify where necessary

    ln(x/(e^x))

    this is wat i did

    ln x - loge e^x

    lnx - x
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  2. #2
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    Quote Originally Posted by math321 View Post
    Write each expression as a sum and/or difference of logarithms. Express powers as factors and simplify where necessary

    ln(x/(e^x))

    this is wat i did

    ln x - loge e^x

    lnx - x
    Yep, no problem there
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  3. #3
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    Quote Originally Posted by math321 View Post
    Write each expression as a sum and/or difference of logarithms. Express powers as factors and simplify where necessary

    ln(x/(e^x))

    this is wat i did

    ln x - loge e^x

    lnx - x
    yes,you're right.

    \ln(\frac{x}{e^x})=\ln x-x
    \ln is the natural logarithm.
    x is strictly positive.
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