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Question: exercise 443 for the function f r2 r...

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Exercise 4.43. For the function f : R2 → R defined below, show that there does not exist a number L such that f(x,y) → L as (z, y) → (0,0). f(x, y) -ry+y. 2 - if (x, y) = (0, 0)

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