Question: Section 3.1-2. Statement: A function u = f(x, y) with continuous second partial derivatives is Harmonic if it satisfies the Laplace Equations J u

Section 3.1-2. Statement: A function u = f(x, y) with continuous second

Section 3.1-2. Statement: A function u = f(x, y) with continuous second partial derivatives is Harmonic if it satisfies the Laplace Equations J u + 0. 2 ay2 Is u(x, y) = x-3xy harmonic?

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