A cubic polynomial may have a local min and max, or it may have neither. Find conditions
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that ensure that f has neither a local min nor a local max.
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f(x) = 3x3 + Zax2 + bx + c 20 30 4 -2 -20 FIGURE 25 Cubic polynomials
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Let f x 13x 3 12ax 2 bx c we have gx fx x 2 ax b 0 for a...View the full answer
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