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Derivativeshard
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If the function f(x)f(x)f(x) is defined implicitly by x2+y2=2xy+3x^2 + y^2 = 2xy + 3x2+y2=2xy+3, what is the second derivative d2ydx2\frac{d^2y}{dx^2}dx2d2y​ at the point (2,−1)(2, -1)(2,−1)?