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1.f(x) = -x^3 -3x^2 +9x-2 Find the value of any relative extreme 2.K(t)=40t/t^2+25 (a) Identify the...

1.f(x) = -x^3 -3x^2 +9x-2

Find the value of any relative extreme

2.K(t)=40t/t^2+25

(a) Identify the open intervals where​ K(t) is increasing.

(b)The function is decreasing on the​ interval(s)

Math   Calculus   
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