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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:

    attachment.php?attachmentid=68783&stc=1&d=1397845277.jpg

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

    attachment.php?attachmentid=68784&stc=1&d=1397845277.jpg

    Could someone shed some light on this?
     

    Attached Files:

  2. jcsd
  3. Apr 18, 2014 #2

    Zondrina

    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

    Mark44

    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.
     
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