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Math Help - function fo bounded variation!

  1. #1
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    function fo bounded variation!

    find  P_{f}= [-1,2], N_{f}= [-1, 2] and  T_{f}= [-1,2] if given that  f(x)= |x|+1 for  -1\leq x \leq 2

    effort made;

    given that  f(x)=|x|+1 for  -1\leq x \leq 2
    we have

    f(-1) = 2
    f(2) = 3

    so

     P_{f}[-1,2]= \sum_{j=1}^{2}[3-2]^{+}
     = [1]^{+}

    please help prove-read if am on track, thanks
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  2. #2
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    Re: function fo bounded variation!

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  3. #3
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    Re: function fo bounded variation!

    thanks
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