Question: In Problems 41-46, use a graphing calculator to approximate the critical values off(x) to two decimal places. Find the intervals on 42. f(x) = x4

In Problems 41-46, use a graphing calculator to approximate the critical values off(x) to two decimal places. Find the intervals on
42. f(x) = x4 + 5x3 - 15x
44. f(x) = e -x - 3x2
46.

In x f(x) =--5x + x2

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