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Give an Appropriate Answer f(x,y)\mathrm { f } ( \mathrm { x } , \mathrm { y } )

Question 392

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Give an appropriate answer.
-Given the function f(x,y)\mathrm { f } ( \mathrm { x } , \mathrm { y } ) and the positive number ε\varepsilon as in the formal definition of a limit, find a positive number δ\delta as in the definition that insures f(x,y)f(0,0)<ε| f ( x , y ) - f ( 0,0 ) | < \varepsilon .
f(x,y)=2x+yx2y2+1;ε=0.12f ( x , y ) = \frac { 2 x + y } { x ^ { 2 } y ^ { 2 } + 1 } ; \varepsilon = 0.12

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