After observing that
1 = 1
and 1 + 3 = 4
and 1 + 3 + 5 = 9
and 1 + 3 + 5 + 7 = 16
and 1 + 3 + 5 + 7 + 9 = 25
it seems easy to conclude that, for any positive integer n, the sum of the first n odd integers is n2.
Showing posts with label William Kloefkorn. Show all posts
Showing posts with label William Kloefkorn. Show all posts
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