Q74. If the first derivative of a function, f'(x), is zero at a point c but does not change its sign as x passes through c, then the point (c, f(c)) is a:Mathematics — NUST Mock 10 — Question 74 of 200A. Local maximumB. Local minimumC. ExtremumD. Point of inflectionPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →