Question: a). Prove that is a function f is harmonic 0, then of dy = 0. b ). Using Green's Theorem, evaluate the line integral e

a). Prove that is a function f is harmonic 0, then of dy = 0. b ). Using Green's Theorem, evaluate the line integral e - y dx+ e + y dy where C = C + C, is the boundary of the region R that is inside the circle x =5cose, y=5sine and outside the eclipse x =2cos0, y =sine

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