MathDB
HOMC (Vietnam)

Source:

January 28, 2016
calculus

Problem Statement

Calculate the sum 12.7.12+17.12.17+...+11997.2002.2007\frac{1}{2.7.12} + \frac{1}{7.12.17} + ... + \frac{1}{1997.2002.2007}.
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