Q84
The range of value of k for which the function f(x) = (k2 - 4)x2 + 6x3 + 8x4 has a local maxima at point x = 0 is
A.
k < -2 or k > 2
B.
k ≤ -2 or k ≥ 2
C.
-2 < k < 2
AnswerD.
-2 ≤ k ≤ 2
Answer: Option C
Solution
Answer: Option C
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