Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Null Space and Column Space Basis

9th - 10th
Video first gives examples of finding the column space and null space of a matrix. Shows how to determine if the column space is a basis. Gives an example of finding the basis of the column space if the column space is not already a...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Null Space 2: Calculating the Null Space of Matrix

9th - 10th
Video demonstrates how to calculate the null space of a matrix by creating a system of equations and using reduced row echelon form to solve and represent the null space by a linear combination of vectors and by the span of vectors. This...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Dimension of the Null Space or Nullity

9th - 10th
Video reviews how to find the null space of a matrix using reduced row echelon form. Shows that the vectors of the null space are linearly independent and form a basis for the null space. Extends this to show how the nullspace can be...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Null Space 3: Relation to Linear Independence

9th - 10th
Video reviews what the null space of a matrix is and how to calculate it, then relates it to linear independence. Shows that if the vectors are linearly independent then the null space is the zero vector. Also shows that if the null...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Introduction to the Null Space of a Matrix

9th - 10th
Video first reviews the criteria for a subspace and then goes through the steps to show the null space meets the criteria and is a a subspace. This video also appears in the strand Algebra: Matrices. [10:21]
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Visualizing a Column Space as a Plane in R3

9th - 10th
Video reviews how to find a basis for the column space and talks about how to find it more efficiently using reduced row echelon form. Shows a visualization of the column space in R3 as a plane. Shows two methods to determine the...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Null Space and Column Space Basis

9th - 10th
Video first gives examples of finding the column space and null space of a matrix. Shows how to determine if the column space is a basis. Gives an example of finding the basis of the column space if the column space is not already a...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Null Space and Column Space Basis

9th - 10th
Video first gives examples of finding the column space and null space of a matrix. Shows how to determine if the column space is a basis. Gives an example of finding the basis of the column space if the column space is not already a...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Null Space 3: Relation to Linear Independence

9th - 10th
Video reviews what the null space of a matrix is and how to calculate it, then relates it to linear independence. Shows that if the vectors are linearly independent then the null space is the zero vector. Also shows that if the null...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Visualizing a Column Space as a Plane in R3

9th - 10th
Video reviews how to find a basis for the column space and talks about how to find it more efficiently using reduced row echelon form. Shows a visualization of the column space in R3 as a plane. Shows two methods to determine the...
Instructional Video
Khan Academy

Khan Academy: Linear Algebra: Visualizing a Column Space as a Plane in R3

9th - 10th
Video reviews how to find a basis for the column space and talks about how to find it more efficiently using reduced row echelon form. Shows a visualization of the column space in R3 as a plane. Shows two methods to determine the...
Instructional Video
Khan Academy

Khan Academy: Calculating the Null Space of a Matrix

9th - 10th
This video calculates the null space of a matrix.