• The Identity Matrix - Concept

Math›Precalculus›Systems of Linear Equations and Matrices
How to determine the identity matrix of order n.
• The Inverse of a Square Matrix - Problem 3

Math›Precalculus›Systems of Linear Equations and Matrices
How to find the inverse of a square matrix of order 3 using row operations.
• The Inverse of a Square Matrix - Problem 2

Math›Precalculus›Systems of Linear Equations and Matrices
How to determine that a matrix has no inverse using row operations.
• The Inverse of a Square Matrix - Problem 1

Math›Precalculus›Systems of Linear Equations and Matrices
How to find the inverse of a square matrix of order 2 using row operations.
• Solving Linear Systems Using Matrix Algebra - Concept

Math›Precalculus›Systems of Linear Equations and Matrices
How to convert a system of linear equations into a matrix equation and solve it.
• The Inverse of a Square Matrix - Concept

Math›Precalculus›Systems of Linear Equations and Matrices
How to determine whether two matrices are inverses.
• Square Matrices - Problem 3

Math›Precalculus›Systems of Linear Equations and Matrices
How to show that two matrices are inverses (in the sense of matrix multiplication).