RD Sharma Class 9 Solutions Chapter 2 - Exponents of Real Numbers Exercise 2.1 - Free PDF
Free PDF download of RD Sharma Class 9 Solutions Chapter 2 - Exponents of Real Numbers Exercise 2.1 solved by Expert Mathematics Teachers on Vedantu.com. All Chapter 2 - Exponents of Real Numbers Ex 2.1 Questions with Solutions for RD Sharma Class 9 Maths to help you to revise the complete Syllabus and Score More marks.You can also download NCERT Solutions for Class 9 Maths to help you to revise the complete syllabus and score more marks in your examinations. Students can also avail of NCERT Solutions for Class 9 Science from our website. Besides, find NCERT Solution to get more understanding of various subjects.
All the numbers that are found in the real world are real numbers. Numbers are everywhere around us. For example, natural numbers are used for counting purposes, rational numbers are used for denoting fractions, irrational numbers are used for finding the square root of a number and integers are used for measuring temperature etc. All these different types of numbers collectively make real numbers. In this chapter, we will learn all about real numbers and their exponents. Real numbers can be defined as numbers that consist of both rational as well as irrational numbers. In simple words, real numbers include positive and negative integers along with irrational numbers. Any number that we can think of, except the complex numbers, is a real number. The set of real numbers is generally denoted by R.
Now, a question arises, which numbers are not real numbers? The answer to this question is - ‘numbers that are neither rational nor irrational are non-real numbers’ for example - √-1, 2 + 3i, and -i. These numbers include the set of complex numbers which is denoted by C.
Laws of Exponents
Exponents can also be defined as Powers or Indices. In simple words, the exponent of a number tells how many times we have to multiply the number by itself. It is very important to understand how the laws of exponents work. These laws are given below.
According to the product law of exponents if we are multiplying two numbers that are having the same base then we can add the exponents.
am × an = a m+n
where a, m and n are natural numbers. One thing that we should keep in mind is that the base should be the same.
According to the quotient law of exponents, if we divide two numbers with the same base then their exponents are subtracted. To divide two exponents that have the same base value, subtract the power in the denominator from the power in the numerator. For example,
aman = an m−n
where a, m and n all are natural numbers and the base should be the same in both the quantities.
According to the power law of exponents if a number raises power to a power, then the exponents are multiplied.
(am)n = am×n
In the above-given example, there is one base ‘a’ and two exponents m and n.
RD Sharma Solutions for Class 9 Maths Chapter 2 – Exponents of Real Numbers helps the students in understanding concepts like integral exponents of a real number, laws of exponents and rational powers easily and effectively. RD Sharma promotes easy learning for the students thus helping students understand the concepts of exponents of Real Numbers. The book provides in-depth solutions for Class 9 Maths Chapter 2 and helps in improving method based learning in the mind of the student from an early age. The students who want to score more marks in the examination are suggested to go through the book to solve their doubts
RD Sharma Solutions Class 9 Maths Chapter 2 provides a clear and concise explanation of each concept in a simple and easy to understand language. These solutions have been generally designed keeping in mind the student’s grasping skills to solve the CBSC Class 9 Maths problems with ease.
FAQs on RD Sharma Class 9 Solutions Chapter 2 - Exponents of Real Numbers Exercise 2.1
1. Where can we find the solutions for RD Sharma Class 9 Chapter 2 - Exponents of Real Numbers Exercise 2.1?
Students can find everything according to their needs on the Vedantu app or website. The resources that are available on the platform are created by professionals in the field and the content is accurate and reliable. Students can find revision notes, important questions, question papers, and a whole lot more! These study materials are completely free and there is no cost involved. All students have to do is sign in and then you will be able to download what you want in pdf format. You can take advantage of these free resources that will surely help you ace your exams.
2. Is it compulsory to solve all the questions of RD Sharma class 9 chapter 2 exercise 2.1?
As we all know practice makes a man perfect so It is always better to solve all the chapter exercises as it leads to more and more practice. Maths is not a subject that you can just read or memorize. It requires hard work and practice. RD Sharma has examples and exercises after every section. After going through each section, go through the solved examples and understand them completely. Then move on to the exercises and try to solve them. There are chances of the same questions coming in the examination so students are advised to practice the questions in the exercises well.
3. Is RD Sharma book useful for the chapter Exponents of Real Numbers for the 2021-2022 examination?
RD Sharma is very useful for Exponents of Real Numbers as it covers every topic of the chapter. For the complete understanding of the student, the book has numerous questions and solved examples after each exercise. Students can refer to this book for the examination along with their textbook as it contains several well-defined solutions which will help the students in securing good marks in the examination. The students are advised to go through each exercise and solve as many sums as they can as it will refine their command over the subject and equip them with a deeper understanding.
4. What are the concepts students will learn from RD Sharma Class 9 chapter 2 exercise 2.1?
In this exercise, students will get to know about real numbers, their properties and their representation. They will also learn about exponents and their laws. After a brief introduction of these topics, the students will solve questions related to these topics to get a better idea of the chapter. After each topic questions related to the topic along with its solution are given to facilitate a deeper understanding of the student. The book contains numerous questions with easy solutions which enhances the knowledge of the student.
5. How to score well in Class 9 maths?
Practicing is the only way to score well in class 9 maths. Solve all the chapter exercises and all the questions. This will improve your problem-solving ability and improve your speed and efficiency. You can make notes of important formulas, definitions, and equations in a notebook and revise them regularly. Refer to RD Sharma for different types of questions. Solved questions RD Sharma provides great help in understanding the questions better. Solve sample papers and question papers of previous years within a time limit. This will get you familiar with the paper pattern, question type as well as improve your time management skills. Revise regularly so that you’re able to retain all you’ve studied for a longer period.