(a) Find the gradient of the following functions at the given point. (i) y = 3t-6 – 2t2 +t+1 when t=1 (3 marks) (ii) y =

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A Find The Gradient Of The Following Functions At The Given Point I Y 3t 6 2t2 T 1 When T 1 3 Marks Ii Y 1 (50.78 KiB) Viewed 77 times

(a) Find the gradient of the following functions at the given point. (i) y = 3t-6 – 2t2 +t+1 when t=1 (3 marks) (ii) y = 3cos(50) - e20 when @ = 0 (3.5 marks) 5 (ii) y = x - x2 when x = 8 (5.5 marks) (b) Given the function, f(x) = x3 - 12x +1. (i) Find the location and nature of the stationary points. (7 marks) Find the interval/s in which f(x) is increasing and the intervals in which f(x) is decreasing (ii)