Below you will find a mathcast for section 3.1 and finding missing values of x and y from two matrices that are equal. In order for two matrices to be equal, they must have the same dimensions and same entries.

Example A Are the following matrices equal?

Solution- both matrices have the same dimension, however each corresponding entry is not the same. the matrices are not equal.

Example B Find the value of x and y. You can view the screen cast to see the solutions.

Multiplying Matrices

Example C Find the product of the matrices below: Watch the video below to see how we take the product of matrices.

equal, they must have the same dimensions and same entries.Are the following matrices equal?Example ASolution- both matrices have the same dimension, however each corresponding entry is not the same. the matrices are not equal.

Find the value of x and y. You can view the screen cast to see the solutions.Example BMultiplying MatricesFind the product of the matrices below:Example CWatch the video below to see how we take the product of matrices.