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Page 2.49
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Page 2.49

by xmung on June 12, 2005 at 12:01 am
Chapter: The Great Leap Forward
Location: Magellan Island
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Discussion (2) ¬

  1. David Nuttall
    June 17, 2020, 11:48 am | # | Reply

    Let’s see.
    g(x) = sqrt(x) * f(x)
    g'(x) = 1/sqrt(x) * f(x) + f'(x) sqrt(x)
    g'(4) = 1/sqrt(4) * f(4) + f'(x) sqrt(4)
    g'(4) = 1/2 * 3 + 5 * 2
    g'(4) = 0.75 + 10
    g'(4) = 10.75
    Way to go Fatima.

    • David Nuttall
      June 17, 2020, 11:54 am | # | Reply

      Oh wait, I goofed the square root rule and some of the simplifying. I think I got suckered by a confirmation bias.
      sqrt(x) = x^(1/2)
      d sqrt(x)/dx = (1/2) x^(-1/2) = 1/(2sqrt(x))
      Therefore,
      g'(x) = f(x)/(2sqrt(x)) + f(x) sqrt(x)
      g'(4) = f(4)/(2sqrt(4)) + f(4) sqrt(4)
      g'(4) = 3/(2*2) + 5 * 2
      g'(4) = 3/4 + 10
      g'(4) = 10.75

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Home

The story so far…
[1] Wannabe
[#] History
[2] Great Leap Forward
[3] Daze
[4] Bad Karma
[#] Gifford: Hero [back soon]
[#] Buying the Stairway to Heaven
[5] Worst Fieldtrip Ever
[#] Redux: Gola Beh
[6] Lock(e)down
[#] The Things That Matter
[7] PaRARGdox

Tales from the MagellanVerse…
Olga & Brelvis
Dr Spooky & Otto
The Olaf Mystery
Legacy
Crossoverkill [a crossover!]

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