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

Do you leave radicals in the denominator?

  1. Aug 3, 2007 #1
    I read somewhere that you are supposed to leave radicals in the denominator when dealing with calculus. Before, I used to rationalize them to the numerator but my Calculus book now has the answers written unrationalized. So I'm wondering if I should start getting use to NOT rationalizing radicals in the denominator. Thanks.
  2. jcsd
  3. Aug 3, 2007 #2
    The idea is to rationalize whenever it is simpler. If it makes no difference in simplification then leave it any way you wish.
  4. Aug 3, 2007 #3


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    It's sorta like using cursive handwriting. If it's required of you by your instructor, then do it. Otherwise, it really doesn't matter. There are far larger things to worry about in higher mathematics.

    - Warren
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Similar Threads for leave radicals denominator Date
Subtracting radical functions Aug 13, 2013
Limits With Radicals. Apr 28, 2013
What IS a radical? Nov 1, 2012
Derivative of function with radicals Jul 10, 2012
Auction theory: reserves vs. take-it-or-leave-it Apr 20, 2010