Chapter 4 : Permutations and Combinations

What will you learn in this chapter

In this chapter, we will be learning about permutations and combinations.
Permutation is the arrangement of objects in a specific order, while combination is the selection of objects without considering the order.
We will investigate and generalize the multiplication rule, which helps us determine the number of permutations.
We will also learn how to calculate the number of permutations for different scenarios, such as when we have n different objects, when we have n different objects and we take r objects at one time, and when we have n objects that involve identical objects.
By the end of this chapter, we will be able to solve problems involving permutations and combinations.