If y = x3 + x2 + x + 1, then y
A. has a local minimum
B. has a local maximum
C. neither has a local minimum nor local maximum
D. None of these
Answer:C
If y = x3 + x2 + x + 1, then y
A. has a local minimum B. has a local maximum C. neither has a local minimum nor local maximum D. None of these