Find the maximum and minimum of the function f over the closed and bounded set S.f(x, y) = x + y + 88; S = {(x, y): x2 + y2 ? 1}
A. f(0, 0) = 88; maximum. No minimum.
B. f(
, 
) = (88 + 
); maximum. f(- 
, - 
) = (88 - 
); minimum.
C. f(0, 0) = 88; minimum. No maximum.
D. f(- 
, - 
) = (88 + 
); maximum. f(
, 
) = (88 - 
); minimum.
Answer: B
Mathematics
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