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Quick Question

  1. May 27, 2010 #1
    If I take e^ln|x|, do I get x or |x|?
  2. jcsd
  3. May 27, 2010 #2


    Staff: Mentor


    For example, if x = -1, ln(x) is undefined, but ln|x| = 0, and e^ln|x| = e^0 = 1 = |-1|
  4. May 27, 2010 #3


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    Staff Emeritus
    Science Advisor
    Homework Helper

    e(any real number) is always positive.
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