Question: QUESTION 4 y-1 Let f(x, y) = 1/+1 (a). Find the domain of this function. (b). Find and sketch the level curves f(x, y)

QUESTION 4 y-1 Let f(x, y) = 1/+1 (a). Find the domain

QUESTION 4 y-1 Let f(x, y) = 1/+1 (a). Find the domain of this function. (b). Find and sketch the level curves f(x, y) = 1, f(x,y) = 0, f(x, y) = 1, and f(x, y) = 2. You may draw all of them in the same plane.

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