Carter Hodgson
09/02/2024 · Middle School
Let \( f(x)=\frac{1}{2} x^{4}-4 x^{3}+9 x^{2}+5 \). Find the intervals of increase/decrease of \( f \). Enter your answer using interval notation. If an answer does not exist, enter DNE. Intervals of increase \( =\square \) Intervals of decrease \( =\square \)
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Intervals of increase \( = (0, 3) \cup (3, \infty) \)
Intervals of decrease \( = (-\infty, 0) \)
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