3 2 (b) For the matrix A = , find: 6 (i) det ( A) (2 marks) (ii) (3 marks) 5 6 (iii) X if AX = 7 2 (3 marks) [Hint: multiply both side by A- ] (iv) Y if YA = 6 (3 marks) 7 [Hint: multiply both side by A-] ](a) Two functions are given as follows: f(x) = 3x+2 2 g(x) = x-1 (i) Determine the function fig(x)]. (6 marks) [Hint: Composite function] (ii) Find the value of f[g(0)]+4