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

Proof of Quotient Rule using Product Rule

  1. Apr 18, 2014 #1
    Hey guys, just trying to understand how the quotient rule is derived, so I head over to wikipedia and saw this:


    But I'm having some difficulty understanding what goes on between these two steps:


    Could someone shed some light on this?

    Attached Files:

    • quo1.jpg
      File size:
      32.3 KB
    • quo2.jpg
      File size:
      9.4 KB
  2. jcsd
  3. Apr 18, 2014 #2


    User Avatar
    Homework Helper

    It looks like they are multiplying by ##1 = \frac{h(x)}{h(x)}##
  4. Apr 18, 2014 #3
    Oh, okay. Cant believe I didnt see that; it was so simple. Sorry to whoever moved my thread for posting in wrong the section. Thanks Zondrina!
  5. Apr 18, 2014 #4


    Staff: Mentor

    I moved it. This seemed more like a technical question than homework, so I move it here.

    Also, what Zondrina said is exactly what happened - they multiplied by 1 in the form of h(x) over itself.

    Also, if you post images again, crop or shrink them so that they fit. 900 pixels wide is about the maximum - yours is 1071 pixels wide, so causes the post to be too wide.
  6. Apr 18, 2014 #5
    Alright, no problem. Thanks again guys.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook