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The Domain of the Vector Field F(x,y)=xyx2+y2i+5x2y2j\mathbf { F } ( x , y ) = \frac { x y } { x ^ { 2 } + y ^ { 2 } } \mathbf { i } + \frac { 5 } { x ^ { 2 } - y ^ { 2 } } \mathbf { j }

Question 154

Multiple Choice

The domain of the vector field F(x,y) =xyx2+y2i+5x2y2j\mathbf { F } ( x , y ) = \frac { x y } { x ^ { 2 } + y ^ { 2 } } \mathbf { i } + \frac { 5 } { x ^ { 2 } - y ^ { 2 } } \mathbf { j } is


A) {(x,y) :(x,y) (0,0) }\{ ( x , y ) : ( x , y ) \neq ( 0,0 ) \}
B) {(x,y) :x>y}\{ ( x , y ) : x > | y | \}
C) {(x,y) :xy}\{ ( x , y ) : x \neq - y \}
D) {(x,y) :xy}\{ ( x , y ) : x \neq y \}
E) {(x,y) :xy}\{ ( x , y ) : x \neq | y | \}

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