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Let f (x) be a differentiable function. Use the limit defintion of the derivative to find the derivative of the function G(x) = 5xf (x).
Let f (x) be a differentiable function. Use the limit defintion of the derivative to find the derivative of the function G(x) = 5xf (x). Note the point at which you need to use the fact that f is continuous. How did you know that f is continuous?