• #### Matrix Operations - Problem 2

##### Math›Algebra 2›Matrices
How to multiply matrices by a scalar multiple.
• #### Matrix Operations - Concept

##### Math›Algebra 2›Matrices
How to use simple matrix operations.
• #### Augmented Matrices - Concept

##### Math›Algebra 2›Matrices
How to use matrices to solve a system of linear equations.
• #### Augmented Matrices - Problem 1

##### Math›Algebra 2›Matrices
How to solve a system of linear equations using an augmented matrix.
• #### The Vector Equation of a Line - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to write the vector equation of a line.
• #### 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.
• #### The Angle Between Vectors - Problem 2

##### Math›Precalculus›Vectors and Parametric Equations
How to determine whether two vectors are perpendicular or parallel.
• #### The Angle Between Planes - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to determine if two planes are parallel or perpendicular.
• #### Vector Operations in 3D - Problem 2

##### Math›Precalculus›Vectors and Parametric Equations
How to find the angle between two vectors in three dimensions.
• #### Perpendicular, Parallel and Skew Lines in Space - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to determine whether two lines in space are parallel or perpendicular.
• #### The Angle Between Planes - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to find the angle between planes, and how to determine if two planes are parallel or perpendicular.
• #### Vector Operations in 3D - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the angle between two vectors in 3D, and how to tell whether two vectors are parallel or perpendicular.
• #### Perpendicular, Parallel and Skew Lines in Space - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the equation of a line parallel to and perpendicular to a given line in space.