Let f(x)=x3−12x^2+21x+11. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima).
f is increasing on intervals=
f is decreasing on intervals=
the relative maxima of f occur at x=
the relative minima of f occur at x=
The function is f(x) = x3 − 12x2 + 21x + 11.
The domain of the given function is (−∞, ∞).
Obtain the critical points as follows.
Differentiate the given function with respect to x .
The signs of f’(x) are summarized ...
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