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Math Help - how do you find the domain of this logerithm?

  1. #1
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    how do you find the domain of this logerithm?

    log5 X^3

    I'm not sure where to start on this one.



    Thanks

    Jason
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by Darkhrse99 View Post
    log5 X^3

    I'm not sure where to start on this one.



    Thanks

    Jason
    The domain of f(x) = log_5(x) is (0, \infty). Does the x^3 change any of that?

    -Dan
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  3. #3
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    No, x^3 doesn't change that.



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    Jason
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  4. #4
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by Darkhrse99 View Post
    No, x^3 doesn't change that.



    Thanks

    Jason
    Great!

    Now just to keep the juices flowing, what would the domain of log_5(x^2) be?

    -Dan
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