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Find the Direction of Maximum Increase of the Function f(x,y,z)=x22xy+z2f ( x , y , z ) = x ^ { 2 } - 2 x y + z ^ { 2 }

Question 27

Multiple Choice

Find the direction of maximum increase of the function f(x,y,z) =x22xy+z2f ( x , y , z ) = x ^ { 2 } - 2 x y + z ^ { 2 } at the point (1,1,2) ( 1,1,2 ) .


A) {1,0,2}\{ 1,0 , - 2 \}

B) {4,1,2}\{ 4,1,2 \}
C) {2,1,4}\{ 2,1 , - 4 \}
D) {0,2,4}\{ 0 , - 2,4 \}
E) {2,0,3}\{ 2,0,3 \}
F) {3,1,2}\{ 3,1,2 \}

G) {0,2,1}\{ 0,2,1 \}

H) (5,1,6) ( 5 , - 1,6 )

Correct Answer:

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