Page No 101:
Question 11:
Find the matrix X so that 
It is given that:
The matrix given on the R.H.S. of the equation is a 2 × 3 matrix and the one given on the L.H.S. of the equation is a 2 × 3 matrix. Therefore, X has to be a 2 × 2 matrix.
Now, let
Therefore, we have:
Equating the corresponding elements of the two matrices, we have:
Thus, a = 1, b = 2, c = −2, d = 0
Hence, the required matrix X is 
