Question 4
Multiple Choice
The domain of the function f(x,y) =1−x2−y22x+y is
A) {(x,y) :x2+y2=1}
B) {(x,y) :x2+y2>1}
C) {(x,y) :x2+y2≥1}
D) {(x,y) :x2+y2<1}
E) {(x,y) :x2+y2≤1}
Correct Answer:

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