61 Videos for "matrices"

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 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to interpret 2x2 matrices as transformations. 
Square Matrices  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to demonstrate that matrix multiplication is not commutative. 
Square Matrices  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine whether two matrices can be multiplied, and if so, what the dimensions of the product will be. 
Introduction to Matrices  Concept
Math › Algebra 2 › Matrices
How to talk about matrices. 
Introduction to Matrices  Problem 1
Math › Algebra 2 › Matrices
Introduction to matrices, including naming, columns and rows, and how to write a system of equations in matrix form 
Augmented Matrices  Concept
Math › Algebra 2 › Matrices
How to use matrices to solve a system of linear equations. 
Augmented Matrices  Problem 4
Math › Algebra 2 › Matrices
Using an augmented matrix to solve a system of equations by hand 
Augmented Matrices  Problem 5
Math › Algebra 2 › Matrices
Solving a system of equations using an augmented matrix on a TI graphing calculator 
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. 
Augmented Matrices  Problem 1
Math › Algebra 2 › Matrices
How to solve a system of linear equations using an augmented matrix. 
Augmented Matrices  Problem 2
Math › Algebra 2 › Matrices
How to solve a system of linear equations using an augmented matrix that yields no solution. 
Augmented Matrices  Problem 3
Math › Algebra 2 › Matrices
How to solve a system of linear equations using an augmented matrix that yields the same line. 
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. 
Matrix Operations  Problem 2
Math › Algebra 2 › Matrices
How to multiply matrices by a scalar multiple. 
The Inverse of a Square Matrix  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine whether two matrices are inverses. 
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. 
Matrix Operations  Problem 1
Math › Algebra 2 › Matrices
How to add matrices.