Let be a matrix and be a matrix

MATHEMATICS · Subjective · CBSE · Mathematics · Matrices · Matrices

Problem

Let

P

be a

4\times 2

matrix and

Q

be a

2\times 4

matrix. Determine whether each of the following products exists. If the product exists, write its order; if it does not, give a brief reason. (i)

PQ

(ii)

QP