If the sign combination of ' and '', changes from ++ to + at x = c,

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If the sign combination of ƒ' and ƒ'', changes from ++ to +− at x = c, then (choose the correct answer)

(a) ƒ(c) is a local min. 

(b) ƒ (c) is a local max.

(c) (c, ƒ (c)) is a point of inflection. 

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Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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