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Multivariable Taylor Series?

Find the second-order Taylor polynomial for f(x,y)=5yx^2 + 4xy^3 at the point (1,2)

(I keep getting 42 + 52(x-1) + 80(y-2) + 10(x-1)^2 + 58(x-1)(y-2) + 23(y-2)^2 but thats wrong...)

1 Answer

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