Khan Academy
Khan Academy: Linear Algebra: Transpose of a Vector
Video demonstrating that the dot product of two vectors is equivalent to the matrix product of the transpose of the first vector times the second vector. Uses this idea to show that the dot product of a matrix-vector product and another...
Khan Academy
Khan Academy: Linear Algebra: Distributive Property of Matrix Products
Video shows that the distributive property is true for multiplying matrices. [9:52]
Khan Academy
Khan Academy: Linear Algebra: Matrix Product Examples
Video shows example of multiplying matrices. Includes explanation of the dimensions needed in order for matrices to be able to be multiplied. Connects to the composition of linear transformations. This video also appears in the strand...