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Sum 2^k for k = 0 to 4

\sum_{k=0}^{4} 2^{k}

Step by step

  1. \sum_{k=0}^{4} 2^{k}

    Write the sum out.

  2. 1 + 2 + 4 + 8 + 16

    Expand the terms.

  3. = 31

    Closed form.

Reveal the answer
31