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Mathematical Methods for Physics and Engineering - Matematica.NET

Mathematical Methods for Physics and Engineering - Matematica.NET

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FOURIER SERIES12.21 c n =[(−1) n sinh π]/[π(1 + n 2 )]. Having set x = 0, separate out the n =0term<strong>and</strong> note that (−1) n =(−1) −n .12.23 (π 2 − 8)/16.12.25 (b) All a n <strong>and</strong> α n are zero; b n =2(−1) n+1 /(nπ) <strong>and</strong>β n =4/(nπ). You will needthe result quoted in exercise 12.19.432

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