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Induction Basics & Standard Sums

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  1. 1.

    sum(k, k=1 to 20) =

  2. 2.

    sum(k^2, k=1 to 5) =

  3. 3.

    sum(k^3, k=1 to 5) =

  4. 4.

    1+3+5+7+...+19 =

  5. 5.

    The first step in PMI is:

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