# Precalculus Examples

Step 1

A matrix is a rectangular arrangement or array of elements. The dimensions of a matrix, , identify how many rows and columns a matrix has. represents the number of rows and represents the number of columns. Assuming that the matrix name is , the matrix dimensions are written as .

Step 2

The number of rows is .

Step 3

The number of columns is .

Step 4

The given matrix has dimensions .