Difference between revisions of "2007 UNCO Math Contest II Problems/Problem 3"
(Created page with "== Problem == State the general rule illustrated here and prove it: <math> 1 ,\quad \begin{tabular}{cc} 1&1\\1&2\end{tabular} ,\quad \begin{tabular}{ccc} 1&1&1\\1&2&2\\1&2&3\e...") |
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== Solution == | == Solution == | ||
| + | <math>1^2+2^2+3^2+\cdots+n^2=1\cdot{n}+3\cdot{(n-1)}+5\cdot{(n-2)}+\cdots+(2n-1)\cdot{1}</math> | ||
== See Also == | == See Also == | ||
