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OpenStudy (anonymous):
sum 5k^2 k=1 to n+3
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OpenStudy (unklerhaukus):
\[\large\sum_{k=1}^{n+3}5k^2\]
OpenStudy (anonymous):
they are asking me to expand it
OpenStudy (unklerhaukus):
what is n?
OpenStudy (anonymous):
I got 5/6 (2n^3 = 21 n^2 +73n+84) is this right?
OpenStudy (anonymous):
it doesnt say its just has the problem and says 2. Assignment 2: On Properties of the summation notation
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OpenStudy (anonymous):
and it starts with that as the first question
OpenStudy (unklerhaukus):
i dont understand the n bit
OpenStudy (anonymous):
Its okay thank you
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