Question: Compute Af for f: R3 R defined by f(x, y, z) = x sin z +y cos z +ex. Is this function harmonic? Why

Compute Af for f: R3 R defined by f(x, y, z) =

Compute Af for f: R3 R defined by f(x, y, z) = x sin z +y cos z +ex. Is this function harmonic? Why or why not?

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