• 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 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 - Concept

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

Math›Precalculus›Systems of Linear Equations and Matrices
How to solve three linear equations in three unknowns using the TI-84 to find the inverse of the coefficient matrix.
• 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.
• Solving Linear Systems Using Matrix Algebra - Problem 1

Math›Precalculus›Systems of Linear Equations and Matrices
How to solve two linear equations in two unknowns using matrix algebra.
• Solving Linear Systems Using Matrix Algebra - Problem 2

Math›Precalculus›Systems of Linear Equations and Matrices
How to solve three linear equations in three unknowns using matrix algebra.
• 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).
• Solving Systems using Matrices - Concept

Math›Algebra›Solving Systems of Equations
How to use matrices to solve a system of equations.
• Solving Systems using Matrices - Problem 1

Math›Algebra›Solving Systems of Equations
How to use matrices to solve a system of equations with whole number solutions.
• Solving Systems using Matrices - Problem 2

Math›Algebra›Solving Systems of Equations
How to use matrices to solve a system of equations that has three equations and three variables.
• Invertible Square Matrices and Determinants - Concept

Math›Precalculus›Systems of Linear Equations and Matrices
How to determine whether a square matrix is invertible using its determinant.
• Invertible Square Matrices and Determinants - Problem 1

Math›Precalculus›Systems of Linear Equations and Matrices
How to show that a 3x3 matrix is not invertible by computing its determinant.
• Invertible Square Matrices and Determinants - Problem 2

Math›Precalculus›Systems of Linear Equations and Matrices
How to show that a 3x3 matrix, [2 5 3; -15 10 18; 20 50 30], is not invertible by computing its determinant.