Identify the necessary and sufficient condition for the sum of two matrices to be defined.

MATHEMATICS · Single correct · CBSE · Mathematics · Matrices · Matrices

Problem

Identify the necessary and sufficient condition for the sum

A+B

of two matrices to be defined. (a)

A

and

B

must be of the same order (b) Both

A

and

B

must be square matrices (c)

A

and

B

must have the same number of rows only (d) Number of columns of

A

must equal number of rows of

B