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Types of Set Video Lecture - Mathematics
FAQs on Types of Set Video Lecture - Mathematics
| 1. What are the different types of sets? |  |
| 2. How are finite sets different from infinite sets? | |
Ans. Finite sets have a limited or specific number of elements, while infinite sets have an unlimited number of elements. For example, the set of all natural numbers is an infinite set as it goes on indefinitely, while the set {1, 2, 3} is a finite set as it has a specific number of elements.
| 3. What is an empty set and how is it represented? | |
Ans. An empty set, also known as a null set or void set, is a set that has no elements. It is represented by the symbol Ø or {} (curly brackets with nothing inside). It is different from a set that contains no elements, as an empty set is a distinct mathematical object.
| 4. Can a set have only one element? | |
Ans. Yes, a set can have only one element. Such a set is called a singleton set. For example, {5} is a singleton set as it contains only one element, which is the number 5. Singleton sets are a special case of finite sets.
| 5. What is a power set and how is it calculated? | |
Ans. A power set of a given set is the set that contains all possible subsets of that set, including the empty set and the set itself. It is denoted by P(S), where S is the original set. To calculate the power set, you can use a simple formula: if a set has n elements, then its power set will have 2^n elements. For example, if a set has 3 elements, its power set will have 2^3 = 8 elements.
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