1) If A=5 and B 3 4 Find:- a) B b) determinant A c) Adjoint B d) A (4,2,2,5mks) 2) a) Using matrix method solve the following simultaneous equations 2x+5y=18 x-3y=-2 a) Find the determinant of the following matrix 1-1-6 3 6 (8 marks) (4 marks) 7 42 c) If told that the determinant of A = 84 find the possible value(s) for X A= 4x (3) 4 (6 marks)