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Chapter 2: Sets

    Introduction

    Set

    Empty Set

    Universal Set And Subset

    Venn Diagrams

    Basic Operations on Sets

    Equal Sets

    Finite And Infinite Sets

    Cardinality of a Finite Set

    Exercise 2.1

    Exercise 2.2

    Exercise 2.3

    Exercise 2.4

    What We Have Discussed

    Enhanced Curriculum Support

    Easy Level Worksheet

    Moderate Level Worksheet

    Hard Level Worksheet

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Chapter 2: Sets > Cardinality of a Finite Set

Cardinality of a Finite Set

The cardinality of a finite set refers to the number of elements present in the set. It is denoted by |A|, where A is the given set.

Example:

1. If A = {2, 4, 6, 8, 10}, then |A| = 5 because there are elements in the set.

2. If B = {apple, banana, mango}, then |B| = 3 since there are elements in the set.