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Math Help - definite integrals lnx

  1. #1
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    definite integrals lnx

    I have an integration whose lower limit has resulted in a negative number. What happens here? So for example;

    ln (4/-2)

    Does this mean it is equal to zero?
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  2. #2
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    Re: definite integrals lnx

    Quote Originally Posted by Googl View Post
    I have an integration whose lower limit has resulted in a negative number. What happens here? So for example;

    ln (4/-2)

    Does this mean it is equal to zero?
    no ... if the log function was the result of integration, you should know that the log's argument involves an absolute value.
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  3. #3
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    Re: definite integrals lnx

    Quote Originally Posted by Googl View Post
    I have an integration whose lower limit has resulted in a negative number. What happens here? So for example; ln (4/-2)
    Does this mean it is equal to zero?
    Why don't you post the actual question?
    I for one, have no idea what that question means.
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  4. #4
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    Re: definite integrals lnx

    Quote Originally Posted by skeeter View Post
    no ... if the log function was the result of integration, you should know that the log's argument involves an absolute value.
    Thanks.

    As in ln (4/2) instead of ln (4/-2)

    The question is long.
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