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Homework Help: 2 question in calculus

  1. Nov 5, 2007 #1
    Last edited: Nov 5, 2007
  2. jcsd
  3. Nov 5, 2007 #2

    Gib Z

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    1. Do you know the taylor series of ln (1+x) ? That would help.

    2. Come on mate you can do this one. Don't let the absolute value scare you, just replace it with its piece wise definition! If x > 0, |x| = x. If x < 0, |x| = -x and if x=0, |x| = 0.

    Find the derivative for the two separate pieces. Find the correct derivatives (check your working again), then set them equal to 0 for the extreme points and solve.
     
  4. Nov 5, 2007 #3
    so i make two separate equations and solve them
    is there a chance that one of them will cancel out??
     
  5. Nov 5, 2007 #4

    Gib Z

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    Not two separate equations, just a single function that defined in terms of TWO pieces.
     
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