„2,3 - Let u = xʻy°, v = second order partial derivatives satisfying: f(4, 0) sin(rx), and z = f(u, v), where ƒ is a function with continuous 10, fu(4,0) = 5, f.(4,0) = 7, fuu (4, 0) = –2, fuv(4, 0) = –1, and fyv(4,0) = 3. Compute dyðx (x,y)=(-2,1)

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