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2002 AMC 12B Problems/Problem 21
From AoPSWiki
Problem
For all positive
integers
less than
, let
Calculate
.
Solution
Since
, it follows that
Thus
.
See also
2002 AMC 12B
(
Problems
•
Resources
)
Preceded by
Problem 20
Followed by
Problem 22
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Category
:
Introductory Algebra Problems