CPM Homework Help : PCT Problem 2-43

Write the following expression using summation notation.

$1^2+2^2+3^2+\dots+9^2+10^2$

Step 1:

How many terms are being added? Start your index at $1$ . Stop at the last term. (Alternatively, you could start at $0$ and end at $9$ .)

Answer 1:

$\displaystyle\sum\limits_{k=1}^{10}$

Step 2:

Find the argument that will result in the desired expansion.

Answer 2:

$\displaystyle\sum\limits_{k=1}^{10}k^2$