1. Consider an infinitely deep rectangular slot with boundary conditions (x, 0) = Vx(L — x), þ(0, y) = $(L, y) = 0 and $(x, y → ∞) = 0. There is no charge source (g = 0). Using ¥(x, y) = Vx(L − x) exp(-py) as the trial solution of the variational method, find the value of p.
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