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Use Taylor's Formula to Find the Requested Approximation of F(x f(x,y)=11+4x+y\mathrm { f } ( \mathrm { x } , \mathrm { y } ) = \frac { 1 } { 1 + 4 \mathrm { x } + \mathrm { y } }

Question 46

Multiple Choice

Use Taylor's formula to find the requested approximation of f(x, y) near the origin.
-Cubic approximation to f(x,y) =11+4x+y\mathrm { f } ( \mathrm { x } , \mathrm { y } ) = \frac { 1 } { 1 + 4 \mathrm { x } + \mathrm { y } }


A) 14xy+16x2+8xy+y264x3+48x2y12xy2+y31 - 4 x - y + 16 x ^ { 2 } + 8 x y + y ^ { 2 } - 64 x ^ { 3 } + 48 x ^ { 2 } y - 12 x y ^ { 2 } + y ^ { 3 }
B) 14xy+16x2+8xy+y264x348x2y12xy2y31 - 4 x - y + 16 x ^ { 2 } + 8 x y + y ^ { 2 } - 64 x ^ { 3 } - 48 x ^ { 2 } y - 12 x y ^ { 2 } - y ^ { 3 }
C) 14xy+16x2+4xy+y264x3+48x2y12xy2+y31 - 4 x - y + 16 x ^ { 2 } + 4 x y + y ^ { 2 } - 64 x ^ { 3 } + 48 x ^ { 2 } y - 12 x y ^ { 2 } + y ^ { 3 }
D) 14xy+16x2+4xy+y264x348x2y12xy2y31 - 4 x - y + 16 x ^ { 2 } + 4 x y + y ^ { 2 } - 64 x ^ { 3 } - 48 x ^ { 2 } y - 12 x y ^ { 2 } - y ^ { 3 }

Correct Answer:

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