• #### 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.
• #### Matrix Operations - Concept

##### Math›Algebra 2›Matrices
How to use simple matrix operations.
• #### Matrix Multiplication - Problem 3

##### Math›Algebra 2›Matrices
Vertically aligning matrices as a tip for multiplying matrices
Tags:
• #### 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 1

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to find the inverse of a square matrix of order 2 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 3

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to find the inverse of a square matrix of order 3 using row operations.
• #### Matrix Multiplication - Concept

##### Math›Algebra 2›Matrices
How to multiply matrices.
• #### Matrix Multiplication - Problem 2

##### Math›Algebra 2›Matrices
How to multiply matrices with differing dimensions.
• #### Matrix Multiplication - Problem 1

##### Math›Algebra 2›Matrices
How to multiply two by two matrices.
• #### 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.
• #### Matrix Operations - Problem 4

##### Math›Algebra 2›Matrices
Adding and subtracting matrices as a method of organizing multiple sets of values in a word problem
Tags:
• #### 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.
• #### 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 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.
• #### 2x2 Determinants - Concept

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to compute the determinant of a 2x2 square matrix.
• #### 3x3 Determinants - Concept

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to compute the determinant of a 3x3 square matrix using minors by expanding along the top row.
• #### 3x3 Determinants - Problem 2

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to determine the effect of interchanging two rows on the value of a determinant.
• #### 3x3 Determinants - Problem 1

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to compute the determinant of a 3x3 square matrix using minors by expanding along any row or column.
• #### 3x3 Determinants - Problem 3

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to determine the effect of a row's common factor on the value of a determinant.