The plane z = 2x y 1 is tangent to the graph of z =
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The plane z = 2x − y − 1 is tangent to the graph of z = ƒ(x, y) at P = (5, 3).
(a) Determine ƒ(5, 3), ƒx(5, 3), and ƒy(5, 3).
(b) Approximate ƒ(5.2, 2.9).
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a and fxx y 2 fyx y 1 and therefore ...View the full answer
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