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1) Discuss about the chapter Number System
2) Clear the basic concepts about the chapter.
Introduction to number system class 9. The collection of numbers is called the number system. Theses numbers are of different types such as natural numbers, whole numbers, integers, rational numbers and irrational numbers. Let us see the table below to understand with the examples.
The number system for class 9th includes the following topics:
- Natural numbers: Numbers that start from 1 and continue to infinity, such as 1, 2, 3, 4, and so on
- Whole numbers: Numbers that start from 0 and continue to infinity, such as 0, 1, 2, 3, 4, and so on
- Integers: Whole numbers that can be positive, negative, or zero
- Rational numbers: Numbers that can be represented in the form of p/q
- Irrational numbers: Numbers that cannot be represented in the form of a ratio.
- Real numbers: The collection of all rational and irrational numbers.
- Decimal number system: A number system with a base of 10 that uses the digits 0 to 9
- Other number systems: Binary, octal, and hexadecimal are other number systems
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