Question

HELP ME Evaluate the series:
Problem Below

Answer 1

\[k^2\sum_{k=1}^{20}\]

Answer 2

\[ \sum_{k=1}^{20} k^2\]
Is this the series??

Answer 3

yes!

Answer 4

http://www.math.com/tables/expansion/power.htm

Answer 5

experimentx has it. :D

Answer 6

hmm

Answer 7

\[\left.\frac{k(k+1)(2k+1)}{6}\right|_{k=20} = \frac{20\cdot 21 \cdot 41}{6}\]

Answer 8

2870 ?

Answer 9

Yes.