Question: Find each limit. (a) (b) (x, y) = x + y lim x-0 f(x + x, y) - f(x,y)

Find each limit.

(a)lim x-0 f(x + x, y) - f(x,y)

(b)

ƒ(x, y) = x² + y²

lim x-0 f(x + x, y) - f(x,y)

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