Theory and ExamplesThe sum of the series To find the sum
Chapter 10, Problem 60E(choose chapter or problem)
Problem 60E
Theory and Examples
The sum of the series To find the sum of this series, express 1/(1 – x) as a geometric series, differentiate both sides of the resulting equation with respect to x, multiply both sides of the result by x, differentiate again, multiply by x again, and set x equal to 1/2. What do you get?
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