2. Find the derivative of each of the following functions: (i) y = x^{12} (ii) y = 3x^{-1} (iii) y = (x^2 - 3x)(4x + 6) (iv) y = \frac{(x^2 + 3x)}{(x^3 - 5)} 3. Find the marginal and average functions for the following total functions and graph the results. (i) The total cost function: C = 3Q^2 - 7Q + 12 (ii) The total revenue function: R = 10Q - Q^2
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