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Homework Statement
Let f and g be sufficiently smooth real-valued (scalar-valued) functions and let u be a sufficiently smooth vector-valued function on a region V of (x1; x2; x3)-space with a sufficiently smooth boundary ∂V . The Laplacian Δf of f:
Δf:=∇*∇f=∂2f/∂x21 + ∂2u/∂x22 + ∂2u/∂x23
Use the Divergence Theorem to Prove:
See in attachment
Homework Equations
Divergence Theorem: