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Answer the following questions about the function whose derivative is f prime ​(x)equals3​x(xplus3 ​). a. What...

Answer the following questions about the function whose derivative is

f prime

​(x)equals3​x(xplus3

​).

a. What are the critical points of​ f?

b. On what open intervals is f increasing or​ decreasing?

c. At what​ points, if​ any, does f assume local maximum and minimum​ values?

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