Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Isolation of a variable exponent?

  1. Oct 3, 2005 #1
    [tex]1 = a^{b}[/tex]

    How can I isolate b in that equation?

    Thanks. ^^
     
  2. jcsd
  3. Oct 3, 2005 #2

    Pyrrhus

    User Avatar
    Homework Helper

    Use Logarithms.
     
  4. Oct 3, 2005 #3

    HallsofIvy

    User Avatar
    Science Advisor

    That's the whole point of logarithms. logax= y if and only if ay= x.
     
  5. Oct 4, 2005 #4

    Ouabache

    User Avatar
    Science Advisor
    Homework Helper

    An algebraic property of logarithms may also be useful here. If you cannot find them in your text, here is an online http://people.hofstra.edu/faculty/Stefan_Waner/RealWorld/calctopic1/logs.html [Broken]. Pay particular attention to the table of identities.
     
    Last edited by a moderator: May 2, 2017
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook