Given the function f(x) = x2/3, which of the following is a valid formula for the instantaneous rate of change at x = 8? Select the correct answer below: (8+h) /3 – h/3 lim h-0 (8+h)2/3 - 4 O lim h-0 4 - h213 lim h-0 h h213 +4 lim h-0

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