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Let f(x,y)=xyf ( x , y ) = \frac { x } { y }

Question 64

Multiple Choice

Let f(x,y) =xyf ( x , y ) = \frac { x } { y } . Then f(x+Δx,y) f(x,y) f ( x + \Delta x , y ) - f ( x , y ) is


A) Δyx\frac { \Delta y } { x }
B) Δyx- \frac { \Delta y } { x }
C) ΔxΔy\frac { \Delta x } { \Delta y }
D) Δxy- \frac { \Delta x } { y }
E) Δxy\frac { \Delta x } { y }

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