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Math Help - logarithm

  1. #1
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    logarithm

    Find in simplest form the exact value of 2^{log_3 5}-5^{log_3 2}
    Last edited by mr fantastic; July 24th 2009 at 05:46 AM. Reason: Clarified question
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by jashansinghal View Post
    ya i want to ask what would the answer come
    Is it number theory, rather than say pre-calculus?

    By the way it's 0.

    CB
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  3. #3
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    how did you get the answer
    prove it
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  4. #4
    Grand Panjandrum
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    Quote Originally Posted by jashansinghal View Post
    how did you get the answer
    prove it
    Take logs (to an arbitrary base) of the two terms in the expression, then see that they are the same.

    CB
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