No, you will not get these types of questions in the exams. But these types of questions are solved to understand the concepts. As these concpets are used in questions, which are asked in the exam. For example, if you refer to the following link at 5:00 , We are discussing a question which was asked in JEE Exam, and we have to use the same concepts to solve the problem. https://www.youtube.com/watch?v=lIdYvu0CAgo&list=PLCzaIJYXP5YdD-nMkUNAKq3PAeBDVV23S&index=37 Whenever we start a chapter, first few lectures are there just to build the basics and then slowly we dive into the concepts which are asked in the exam, Consider matrices and determinants as one chapter and clear all the concepts. After that, you will get the idea what types of questions are asked in the exam and how to solve them. Hopefully, I have solved your query. Feel free to ask more.