Matrices are like numbers where you can perform mathematical operations like addition and subtraction. However, there are some rules to matrix operations that you need to follow to be able to add, subtract, or multiply matrices. For example, to perform addition and subtraction on a matrix, matrices need to have the same dimension. To multiply a matrix with a number, you need to multiply each element of a matrix by the number. There are some properties that regulate matrix operations, which you'll learn more about in the lecture.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.