Difference between revisions of "2003 AMC 10A Problems/Problem 1"
(added problem and solution) |
(No difference)
|
Revision as of 19:02, 4 November 2006
Problem
What is the difference between the sum of the first even counting numbers and the sum of the first
odd counting numbers?
Solution
The first even counting numbers are
.
The first odd counting numbers are
.
Thus, the problem is asking for the value of .