Q1.

a)

COS x - 4x + 5 (a) Evaluate lim log 2x2 - 8x +9Let f : R - R be the function COS Z (x2-4x+5) x#2 f(x) = log 2x2-8x+9 r = 2 where o E R is a constant. For what value(s) of a is f continuous at x = 2? Justify your answer with reference to the definition of continuity.Let g : R - R be given by COS (22-4x+5) g(x) = x a