Matrix multiplication is multiplying one matrix by another. The first step in this multiplication is verifying that the matrices have required dimensions. Remember that not all matrices can be multiplied so always check the dimension requirement. Matrix multiplication is not as simple as matrix addition or subtraction. You might think that you just need to multiply the corresponding elements but that is not the case. In this lecture, you'll learn the rule on matrix multiplication and have lots of practice. Through the examples, you'll get familiar with the properties of matrix multiplication (the associative and the distributive property).
*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.