Question: Problem 5: Suppose that f(x, y) is any twice continuously differentiable multivariable function, and let (P(r, y). Q(r, y)) = Vf(x,y). Calculate Qx - Py

Problem 5: Suppose that f(x, y) is any twice continuously differentiable

Problem 5: Suppose that f(x, y) is any twice continuously differentiable multivariable function, and let (P(r, y). Q(r, y)) = Vf(x,y). Calculate Qx - Py (sometimes called the "2D curl" of the vector field (P,Q)) in terms of partial derivatives of f

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