34 Videos for "matrix equation"

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 3
Math › Precalculus › Systems of Linear Equations and Matrices
How to solve three linear equations in three unknowns using the TI84 to find the inverse of the coefficient matrix. 
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. 
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. 
The Inverse of a Square Matrix  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine whether two matrices are inverses. 
Matrix Operations  Problem 3
Math › Algebra 2 › Matrices
Using matrix operations to solve matrix equations 
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 2
Math › Algebra › Solving Systems of Equations
How to use matrices to solve a system of equations that has three equations and three variables. 
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. 
Cramer's Rule  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to solve a system of two linear equations with two unknowns using Cramer's rule. 
Cramer's Rule  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to solve a system of three linear equations with three unknowns using Cramer's rule and the TI84 to compute determinants. 
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). 
Square Matrices  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to demonstrate that matrix multiplication is not commutative. 
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.