55 Videos for "matrices"

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  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. 
Matrix Multiplication  Concept
Math › Algebra 2 › Matrices
How to multiply matrices. 
Matrix Multiplication  Problem 1
Math › Algebra 2 › Matrices
How to multiply two by two matrices. 
Matrix Multiplication  Problem 2
Math › Algebra 2 › Matrices
How to multiply matrices with differing dimensions. 
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  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  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to convert a system of linear equations into a matrix equation and solve it. 
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. 
Area With Determinants  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a parallelogram using a determinant. 
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. 
Area With Determinants  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a triangle using a determinant. 
The Cross Product of Vectors  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the cross product of two 3D vectors. 
Simplifying Determinants  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to simplify determinants using three row (or column) operations.