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Math Help - limit help

  1. #1
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    limit help

    I haven't done any work with limits for some time and am trying to revise limits and have come across one that has me confused;

    What's the best way to evaluate the following,

    limit as x -> 0 of (a^x - b^x)/x

    any help here would be appreciated.

    Cheers
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  2. #2
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    Quote Originally Posted by monster View Post
    I haven't done any work with limits for some time and am trying to revise limits and have come across one that has me confused;

    What's the best way to evaluate the following,

    limit as x -> 0 of (a^x - b^x)/x

    any help here would be appreciated.

    Cheers
    Using l'Hopital's Rule would be the simplest approach.
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  3. #3
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    I'm sorry but have thought about it can't see how to do this could you start me off, i'm hoping once i see the beggining it jogs my memory
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  4. #4
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    Quote Originally Posted by monster View Post
    I'm sorry but have thought about it can't see how to do this could you start me off, i'm hoping once i see the beggining it jogs my memory
    Have you learned l'Hopital's Rule or not?
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