SSC CGL Exam > SSC CGL Videos > Crash Course for SSC CGL (English) > Introduction to Number System - 2
Introduction to Number System - 2 Video Lecture | Crash Course for SSC CGL (English)
FAQs on Introduction to Number System - 2 Video Lecture - Crash Course for SSC CGL (English)
| 1. What is the number system? |  |
Ans. The number system is a mathematical system used to represent numbers. It includes different types of numbers such as natural numbers, whole numbers, integers, rational numbers, and irrational numbers.
| 2. What are natural numbers? | |
Ans. Natural numbers are a set of positive integers starting from 1 and extending to infinity. They do not include zero or negative numbers.
| 3. What are rational numbers? | |
Ans. Rational numbers are numbers that can be expressed as a fraction, where the numerator and denominator are integers. They can be positive, negative, or zero.
| 4. What are irrational numbers? | |
Ans. Irrational numbers are numbers that cannot be expressed as a fraction, and their decimal representation goes on indefinitely without repeating. Examples of irrational numbers include √2 and π.
| 5. What is the difference between whole numbers and integers? | |
Ans. Whole numbers are a set of non-negative integers including zero. Integers, on the other hand, include both positive and negative numbers, including zero. In simple terms, integers are the combination of whole numbers and their negatives.
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Nov 20, 2024 Last updated |
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