65 Videos for "systems of linear equations"

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. 
Area With the Cross Product  Problem 3
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a triangle in xyzspace using vectors formed from two of its sides. 
The Cross Product of Vectors  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to show that the cross product of vectors u and v is perpendicular to both u and v. 
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. 
Area With the Cross Product  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a parallelogram using the cross product of the vectors that determine it. 
Invertible Square Matrices and Determinants  Problem 2
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  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine whether a square matrix is invertible using its determinant. 
Area With the Cross Product  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a triangle in the xyplane using vectors formed from two of its sides. 
Area With the Cross Product  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to show that the magnitude of the cross product of two vectors gives the area of the parallelogram determined by those two vectors. 
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. 
Rectangular Coordinate System  Concept
Math › Algebra 2 › Graphs of Linear Equations
How to talk about the rectangular coordinate system. 
Rectangular Coordinate System  Problem 2
Math › Algebra 2 › Graphs of Linear Equations
How to find x and y intercepts. 
Rectangular Coordinate System  Problem 3
Math › Algebra 2 › Graphs of Linear Equations
How to solve for a variable given a point that lies on the line. 
Rectangular Coordinate System  Problem 1
Math › Algebra 2 › Graphs of Linear Equations
How to find a point on a line. 
Set Operation: Union  Problem 3
Math › Precalculus › Linear Equations and Inequalities
How to solve a union of two inequalities that do not overlap. 
Set Operation: Union  Problem 1
Math › Precalculus › Linear Equations and Inequalities
How to solve a union of two inequalities where the inequalities overlap and go in different directions. 
Set Operation: Union  Problem 2
Math › Precalculus › Linear Equations and Inequalities
How to solve a union of two inequalities where the inequalities overlap and go in the same direction. 
Set Operation: Intersection  Problem 1
Math › Precalculus › Linear Equations and Inequalities
How to solve an intersection or inequalities where the inequalities overlap and go in different directions. 
Set Operation: Intersection  Problem 3
Math › Precalculus › Linear Equations and Inequalities
How to solve an intersection of two inequalities where the inequalities do not overlap. 
Set Operation: Intersection  Problem 2
Math › Precalculus › Linear Equations and Inequalities
How to solve an intersection of two inequalities where the inequalities overlap and go in the same direction.