Consider d2u dx2 + u = f(x) with u(0) = 0 and u(L)=0. Assume that (n/L) 2 = 1 (i.e., L =
Chapter 9, Problem 9.3.9(choose chapter or problem)
Consider d2u dx2 + u = f(x) with u(0) = 0 and u(L)=0. Assume that (n/L) 2 = 1 (i.e., L = n for any n). (a) Solve by the method of variation of parameters. *(b) Determine the Greens function so that u(x) may be represented in terms of it [see (9.3.15)].
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