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Math Help - Help with Logs

  1. #1
    Ant
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    Help with Logs

    e^ln2 = 2

    Is this correct? if so, can anoyone explain it to me please, I can see how perhaps the e and ln cancel each other out (being inverses)?

    Thanks.
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  2. #2
    Moo
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    Hello,
    Quote Originally Posted by Ant View Post
    e^ln2 = 2

    Is this correct? if so, can anoyone explain it to me please, I can see how perhaps the e and ln cancel each other out (being inverses)?

    Thanks.
    Yes it's because they're inverses.


    \forall x \in \mathbb{R}, ~ \ln(e^x)=x

    \forall x \in (0,+\infty),~ e^{\ln(x)}=x
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