Modelling with Differentiation - Naiker | Maths
9. y = x2 − k√x, where k is a constant. (a) Find . (2) (b) Given that y is decreasing at x = 4 , find the set of possible values of k. (2) June 10 Q3 10. Figure 2 shows a sketch of part of the curve C with equation y = x3 − 10x2 + kx, where k is a constant. The point P …
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