Use the Fourier series for the square wave f(x) = 1 < x to explain why the following sum
Chapter 0, Problem 56(choose chapter or problem)
Use the Fourier series for the square wave f(x) = 1 < x to explain why the following sum must approach /4 as n : 1 1 3 + 1 5 1 7 + + (1)n 1 2n + 1 . You may assume that the Fourier series converges to f(x) at x = /2.
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