168k views
5 votes
These two matrices are unable to be added due to dimensional mismatch? True, false, both, unable to answer with the info given

These two matrices are unable to be added due to dimensional mismatch? True, false-example-1
User Becky
by
8.5k points

1 Answer

4 votes

Answer:

false

Explanation:


\left[\begin{array}{c}-4\end{array}\right] +\left[\begin{array}{c}7\end{array}\right] =\left[\begin{array}{c}3\end{array}\right]

Both of the matrices are 1 x 1 ("one by one"), so they can be added to produce a 1 x 1 matrix.

To add (or subtract) two matrices, they must be the same size.

(m x n) + (m x n) = (m x n)

m x n means a matrix has m rows and n columns. Dimensions are always named in that order: rows, then columns.

User Deamon
by
8.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories