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Unformatted text preview: ∑ ∞ 1 (2 n1)6 . Hint: Use the Fourier expansions of the functions f ( x ) = sinh x , respectively g ( x ) = x ( π  x  ), (π < x ≤ π ). 2. Let l > 0. Show that s 2 l sin ± n1 2 ² πx l ∞ 1 is an orthonormal set on PC (0 , l )....
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This note was uploaded on 02/07/2011 for the course MATH 212 taught by Professor Friedmannbrock during the Fall '08 term at American University of Beirut.
 Fall '08
 FriedmannBrock
 Differential Equations, Equations, Partial Differential Equations, Fourier Series

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