Is the differential 2re sin ydr+e cos ydy exact? If yes, then the funetion f from which it is exact is a. No c. Yes.f(r, y) = e siny +C b. Yes. f(r. y) = e* cos y+ C d. Yes.f(r, y) = 2re siny +C

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A: Please refer to the image below

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A: (a) Since ∇×∇=0 So, curlF=0 Hence, F is conservative field.