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10. The function g (x) = x4 -kx3 - 9x2 + 7x - 8 has a minimum when x = 3. Determine the value of

10. The function g (x) = x4 -kx3 - 9x2 + 7x - 8 has a minimum when x = 3. Determine the value of k. [3 Marks] 11. What point on the curve y = x4, does the normal have a slope of 16? [5 Marks] 4

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