Question

What is the dimension of the matrix `[(-3,17,-22),(9,31,16), (20,-15,4)]`?

Answer 1

`3` by `3` or `3xx3` matrix

Explanation:

A matrix dimension is based on the number of rows by the number of columns.

If a matrix has `m` rows and `n` columns, it is known as a `mxxn` matrix.

In the given example, as both rows and columns are three, it is a `3xx3` matrix