Saturday, March 21, 2009

Question set 4

  1. y = e ^(2x). Find dy/dx and d^2y/dx^2
  2. y = sin x . Find d^133 y /d x^133
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6 comments:

  1. poopsiepumkinpieMarch 22, 2009 at 10:47 AM

    y= e^2x

    dy/dx= 2 e^2x

    d2y/dx2= 4e^2x

    ReplyDelete
  2. phoenixMarch 23, 2009 at 12:56 PM

    Question #1:
    Remember that the differential of "e^1" is e.

    With this in mind the approach to e^2x is of the same nature.

    First you must analyse the power, and determine whether or there is a coefficient of the unkown.

    If there is one, you must bring it in front of the exponential.

    Then you rewrite the exponent with this coefficient and you have successfully completed the first derivitive of the exponent.

    Solution: y = e^(2x)
    = 2e^(2x)

    ReplyDelete
  3. phoenixMarch 23, 2009 at 12:59 PM

    Hey guys, for the second derivitive the steps are basically the same.

    Just repaet the steps from beginning to end and you will have the second differential.

    ReplyDelete
  4. phoenixMarch 23, 2009 at 1:01 PM

    Wow!!! Question #2! Miss... or should i say mom, don't you think that is a bit wierd! lol.

    Nevertheless, i'll need to have pen and paper to attempt this question, i know there must be a simple approach!

    ReplyDelete
  5. Swanky ThingMarch 24, 2009 at 4:07 PM

    Well phoenix I tried it and came up with alot of problems, if you get through could you please explain what you did........

    ReplyDelete
  6. Low riderMarch 30, 2009 at 11:33 AM

    Question 2 is very complicated i tried but keep getting stuck. Anyone can figure it out.

    ReplyDelete

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