Matrix/Matrices Review

Front

What is a matrix?

Back

A matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns.

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are given in the form 'rows x columns', indicating the number of rows and columns it contains.

Front

How do you denote the position of an element in a matrix?

Back

Front

What is the determinant of a matrix?

Back

The determinant is a scalar value that can be computed from the elements of a square matrix, providing important properties about the matrix, such as whether it is invertible.

Front

When do you find the determinant of a matrix?

Back

You find the determinant when the matrix is square (same number of rows and columns) and when the problem specifically requires it.

Front

What is the shape of a 3x4 matrix?

Back

A 3x4 matrix has 3 rows and 4 columns.

Front

What is the shape of a 1x4 matrix?

Back

A 1x4 matrix has 1 row and 4 columns.

Front

How do you identify the position of an element like G in a matrix?

Back

Front

What does it mean if a matrix operation is undefined?

Back

An operation involving matrices is undefined if the matrices do not conform to the required dimensions for that operation.

Front

What is a square matrix?

Back

A square matrix is a matrix that has the same number of rows and columns.