Answer:
The answer is explained below
Explanation:
I am going to list a series of points where it is important to learn how to perform matrix operations.
1. The first and most important is that calculators may not always be available, and even if you do have them there will be cases where they won't let you use them.
2. By performing the operation by hand it will allow you to understand the process in a better way, such as finding an inverse, if you do this with a calculator you will most likely not know what was done.
3. Although it seems basic, some calculators cannot display the elements of a matrix as fractions, which is important to understand the process.
4. There are special cases such as when an array could contain a variable and the calculator could not be used in this case.
5. Although in most cases the calculator can help us get out of the operation quickly, sometimes it is faster at hand and, most importantly, when performing the step by step, you understand the entire operation better.