Let f(x)= x^3 + 9x^2 48x + 3.(a) Use the definition of a derivative...

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Calculus

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Let f(x)= x^3 + 9x^2 48x + 3.(a) Use the definition of a derivative or the derivative rules to findf'(x)=_______________(b) Use the definition of a derivative or the derivative rules to findf''(x) =______________(c) On what interval(s) is f increasing?x:_______________(d) On what interval(s) is f decreasing?x:_______________(e) On what interval(s) f is concave downward?x:________________(f) On what interval(s) is f concave upward?x:_______________

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