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  1. MHB Master
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    anemone's Avatar
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    #1
    Here is this week's POTW:

    -----

    The set of real numbers $x$ for which

    $\dfrac{1}{x-2009}+\dfrac{1}{x-2010}+\dfrac{1}{x-2011}\ge 1$

    is the union of intervals of the form $a<x\le b$.

    Find the sum of the lengths of these two intervals.

    -----

    Remember to read the "POTW submission guidelines to find out how to "submit your answers!

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  3. MHB Master
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    #2 Thread Author
    No one answered POTW #402.

    You can find the suggested solution by other below.

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