Consider waves in a resistant medium that satisfy the
Chapter 4, Problem 4.4(choose chapter or problem)
Consider waves in a resistant medium that satisfy the problem utt =c2uxx rut for 0 < x < l u =0 at both ends u(x,0)= (x) ut(x,0)= (x), where r is a constant, 0 < r < 2c/l. Write down the series expansion of the solution.
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