Which of the following functions is continuous at ( 0, 0 )? 1 af (x, y)...

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Which of the following functions is continuous at ( 0, 0 )? 1 af (x, y) x y Ob. f (x, y) = f(x, y) = Od. f (x, y) = = x² Oe. f (x, y) ln (x² + y²) x y 2x² + y² = xy - 2y 4x + y² + 4 ln ( xy - x² x + y + 3 ) Which of the following functions is continuous at ( 0, 0 )? 1 af (x, y) x y Ob. f (x, y) = f(x, y) = Od. f (x, y) = = x² Oe. f (x, y) ln (x² + y²) x y 2x² + y² = xy - 2y 4x + y² + 4 ln ( xy - x² x + y + 3 )

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