Question: In Exercises 7176, find each limit. f(x, y) = x 2 4y (a) lim 0 (b) lim y f(x + x, y) - f(x,y)

In Exercises 71–76, find each limit.


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


f(x, y) = x2 − 4y

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

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