pmomma11 pmomma11 15-11-2018 Mathematics contestada True or false... please explain why if false Let the function f be differentiable on an interval I containing c. If f has a maximum value at x = c, then f has a minimum value at x = c. A cubic function defined by f(x)= ax^3+bx^2+cx+d where a does not equal 0 will always have exactly three critical numbers