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Find the Minimum Value of the Function f(x,y)=x2+y2f ( x , y ) = x ^ { 2 } + y ^ { 2 }

Question 112

Multiple Choice

Find the minimum value of the function f(x,y) =x2+y2f ( x , y ) = x ^ { 2 } + y ^ { 2 } subject to the constraint that xy=2x y = 2 .


A) 12\frac { 1 } { 2 }
B) 1

C) 32\frac { 3 } { 2 }
D) 2
E) 52\frac { 5 } { 2 }

F) 3
G) 72\frac { 7 } { 2 }
H) 4

Correct Answer:

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