1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Natural log fxn = negative integral?

  1. Nov 23, 2009 #1
    1. The problem statement, all variables and given/known data
    True or false?

    ln(1/10) = -[tex]\int[/tex] dx/x

    3. The attempt at a solution

    I have no idea where to start on this one.

    what is dx/x ??
     
  2. jcsd
  3. Nov 23, 2009 #2
    right side means that u are supposed to integrate with respect to x

    -Integrate[1/x] with respect to x
     
  4. Nov 23, 2009 #3

    Mark44

    Staff: Mentor

    This is obviously not true as posted. Are there limits of integration that we're not seeing?
    I.e., does the integral look like this?
    [tex]-\int_1^{10} \frac{dx}{x}[/tex]
     
  5. Dec 18, 2009 #4
    ok I get it. the limits are missing, it must be a typo, but otherwise this makes sense to me now thanks
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Natural log fxn = negative integral?
Loading...