Question: (a) Use a computer algebra system to differentiate the function, (b) Sketch the graphs of f and f on the same set of coordinate axes

(a) Use a computer algebra system to differentiate the function,


(b) Sketch the graphs of f and f′ on the same set of coordinate axes over the given interval,


(c) Find the critical numbers of f in the open interval, and


(d) Find the interval(s) on which f′ is positive and the interval(s) on which f′ is negative. Compare the behavior of f and the sign of f′.


f(x) 2 + cos 2' [0, 4 ]

f(x) 2 + cos 2' [0, 4 ]

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