Question

Given `[(2, 1),(-3, 4)] X = [(7), (6)]` write the order of matrix x

Answer 1

Let the order of matrix x be `a xx b`

`:. [(2, 1),(-3, 4)]_(2 xx 2) xx X_(a xx b) = [(7),(6)]_(2 xx 1)`

⇒ a = 2 and b =1 

∴ The order of the matrix x = a x b = 2 x 1