Question: e) f(x) = (cosx - sinx)^3d) f (x) = x^4 cos(2x) #1: Calculate the following derivatives. Simplify wherever possible a) f (x) =84x2-6x+1 (3 marks)

e) f(x) = (cosx - sinx)^3d) f (x) = x^4 cos(2x)

#1: Calculate the following derivatives. Simplify wherever possible a) f (x) =84x2-6x+1 (3 marks) b) f(x) = cos (6x2 - 3x - 1) (2 marks) c) f(x) = x3ex (3 marks) d) f(x) = sin?(5x)
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