Barrons AP Calculus - David Bock

dmanu (dmanu) 2022-08-30 04:58:57 UTC #1

(E) Because p ′′(2) < 0 and p ′′(5) > 0, p changes concavity somewhere in the interval [2,5],
but we cannot be sure p ′′ changes sign at x = 4.

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