Let f(x)=4x3−18x2+27x−5, x∈R. Then which of the following statements are TRUE?
(A) f′′(x)=24x−36
(B) f has local maxima at x=23 but no minima
(C) f has neither maxima nor minima
(D) f has both maxima and minima
Choose the correct answer from the options given below:
Held on 29 May 2025 · Verified 13 Jul 2026.
(A) and (B) only
(A) and (C) only
(B) and (C) only
(A) and (D) only
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