Question

Write out the sum. Do not evaluate.∑∑k=1 (k^2-5k-3)" id="TexFormula1" title="4\\E(K^2-5k-3)\\k=1" alt="4\\E(K^2-5k-3)\\k=1" align="absmiddle" class="latex-formula">

Answer 1

Series are sum of a given sequence.. The sum of the given expression is -33

Sequence and series

Series are sum of a given sequence. According to the given expression

∑∑k=1 (k^2-5k-3)

Taking the sum from k = 1 to k = 4

Sum = (1-5-3) + (4-10-3) +(9-15-3)+(15-20-3)

Sum = (-7) + (-9) + (-9) + (-8)

Sum = -33

Hence the sum of the given expression is -33

Learn more on sum notation here: brainly.com/question/542712

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