Question: Let f(x) = 3x. (a) If a 0, use Equation 2.7.5 to find f'(a). (b) Show that f'(0) does not exist. (c) Show that

Let f(x) = 3√x.
(a) If a ≠ 0, use Equation 2.7.5 to find f'(a).
(b) Show that f'(0) does not exist.
(c) Show that y = 3√x has a vertical tangent line at (0, 0).

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