Question

(b) Given that P = [[2, –1], [3, 4]], Q = [[5, 2], [7, 4]] and R = [[2, 5], [3, 8]], find a matrix S such that PQ – RS is a null matrix.

Given that P = [[2, –1],[3, 4]], Q = [[5, 2],[7, 4]] and R = [[2, 5],[3, 8]], find a matrix S such that PQ – RS is a null matrix.