Number System is the first chapter of Class 9 Maths NCERT Book. It covers various topics, including an introduction to number systems, irrational numbers, real numbers and their decimal expansions, operations on real numbers, and the laws of exponents for real numbers and their applications.
The chapter begins with an introduction to Number Systems in section 1.1, followed by significant topics in sections 1.2, 1.3, 1.4, and 1.5.
ALLEN'S Experts lucidly curated the solutions to improve the students' problem-solving abilities. For a more precise idea about Number Systems NCERT solutions, students can download the below NCERT Class 9 Maths chapter 1 pdf solution.
Irrational Numbers: Numbers that can't be written as p/q.
Real Numbers and their Decimal Expansions: This section includes the decimal expansions of real numbers and how to distinguish between rational and irrational numbers.
Number Line: Representing Real Numbers on the Number Line.
Operations on Real Numbers: Here, you explore operations like addition, subtraction, multiplication and division on irrational numbers.
Laws of Exponents for Real Numbers: Use these laws of exponents to solve the questions.
There are five exercises in chapter 1 (Number systems) of class 9 Maths. Students can find the split below:
Explore Number Systems and learn how to solve various problems only on NCERT Solutions For Class 9 Maths.
1. Foundation for Advanced Math: It forms the basis for understanding more complex
mathematical concepts in higher classes, including algebra, calculus, and trigonometry.
2. Real-Life Applications: Helps in solving real-world problems like calculating areas and volumes and understanding financial transactions.
3. Understanding Different Types of Numbers: Students learn about rational, irrational, and real numbers, enabling them to classify and use numbers effectively in various mathematical problems.
4. Preparation for Competitive Exams: A strong grasp of number systems is crucial for excelling in competitive exams like NTSE, Olympiads, and even entrance exams like JEE and NEET.
5. Building a Strong Mathematical Base: It provides a solid foundation for other topics in mathematics, making it easier to understand future concepts and chapters.
By mastering this chapter, students not only excel academically but also develop skills that are useful in everyday life and future studies.
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