Find the extreme values of the function subject to the given constraint.
A. Maximum: 6 at (0, ±1); minimum: 7 at (±1, 0)
B. Maximum: 6 at (±1, 0); minimum: 7 at (0, ±1)
C. Maximum: 6 at (±1, 0); minimum: 0 at (0, 0)
D. Maximum: 6 at (0, ±1); minimum: 0 at (0, 0)
Answer: A
Mathematics
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