CBSE 9 Mathematics | 1. Number Systems by Akhil | Learn Smarter
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1. Number Systems

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Sections

  • 1

    Number Systems

    This section introduces different types of numbers in the number system, including natural numbers, whole numbers, integers, rational numbers, and irrational numbers.

  • 1.1

    Introduction

    The introduction to number systems discusses the classification of numbers, including natural numbers, whole numbers, integers, rational numbers, and the concept of rational and irrational numbers.

  • 1.2

    Irrational Numbers

    This section explores the concept of irrational numbers, which cannot be expressed as a ratio of integers, and contrasts them with rational numbers.

  • 1.3

    Real Numbers And Their Decimal Expansions

    This section explores the decimal expansions of real numbers, distinguishing between rational and irrational numbers.

  • 1.4

    Operations On Real Numbers

    This section covers the operations involving real numbers, specifically focusing on the properties of rational and irrational numbers under addition, subtraction, multiplication, and division.

  • 1.5

    Laws Of Exponents For Real Numbers

    This section introduces the laws of exponents for real numbers, covering operations with positive rational exponents and their extensions.

  • 1.6

    Summary

    This section covers the essential definitions, properties, and characteristics that distinguish rational and irrational numbers, emphasizing their roles within the broader category of real numbers.

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