Laws of Exponents for Real Numbers, Number System BASICS CLASS 9 Chapter 1 Ex 1.6 Q2 NCERT

Laws of Exponents for Real Numbers, Number System BASICS CLASS 9 Chapter 1 Ex 1.6 Q2 NCERT, Learn Number System from class 9th chapter 1 and entire NCERT Math from class 9th, 10th, 11th and 12th on our website https://www.mathsphy.com In all these videos on Number System chapter 1 class 9th I have always focused on explaining the basics and then solving the questions. My way of solving question will always refer back to the basics explained previously so that students can make the connect between basics and application of them. Let’s now start about the Number System: We have learned about numbers even earlier however here we will learn more about them in details. We learn about basics for ex: What are natural numbers: Natural Numbers 1,2,3,4,5,6,7,8,9,10,11,564,897,1000…….and so on Exclusion: 0, -ve numbers, fractions, irrational numbers Whole Numbers 0,1,2,3,4,5,6,7,8,9,10,11,564,897,1000…….and so on All the Natural numbers are whole as well Exclusion: -ve numbers, fractions, irrational numbers Integers -1,-2,-3,0,1,2,3,4,5,6,7,8,9,10,11,564,897,1000…….and so on All the Natural and Whole are Integers also Exclusion: fractions, irrational numbers Rational Numbers -1, \frac{-2}{7}, -2,-3,0, \frac{0}{1} ,1,2,3,4,5,6,7,8,9,10,11,564,897,1000…….and so on \frac{p}{q} format where p and q are integers and q\neq0 All the Natural, Whole, Integers are rational also. Exclusion: irrational numbers Irrational Numbers NonTerminating and Non Repeating numbers \sqrt2,\ \sqrt3,\sqrt5,\sqrt7,\sqrt{15},\ \sqrt[3]{9},\ \pi,0.10100100010000100000….. \sqrt2 = 1.4142135623…… \pi = 3.14159265……. Non-Terminating Non Repeating numbers Addition, Substraction, Multiplication, Division of Rational and Irrational Numbers The sum or difference of a rational and an irrational number is irrational. The product or quotient of a non zero rational number with an irrational number is irrational If we add, subtract, multiply, or divide two irrationals, result may be rational or irrational. We will learn about showing numbers on Number Lines and so on ad so forth. In this Number System chapter from class 9th you will learn about Number System Introduction Irrational Numbers Real Numbers and their decimal expansions Representing real numbers on number line Operations on real numbers Laws of exponents for real numbers Questions from all the topics and exercises. As per the syllabus, you will learn all the topics in my Number System Chapter Videos: Please use this link for the YouTube playlist of Number System Class 9th:    • Number Systems - Math Class 9 - NCERT CBSE...   This link will get you 39 videos Mathsphy provides unconventional and a better way of learning maths. It saves time and gives you ease of learning anytime anywhere at your convenience. It has more than 1000 videos for 9th , 10th and 11th grade students explaining topic concepts and then solving all the questions in a very professional language giving you the experience of personalized tutoring. Class 9 I have: Number System, Polynomials, Coordinate Geometry, Linear Equations in Two Variable, Lines and Angles, Triangles, Quadrilaterals, Circle, Areas of Parallelograms and Triangles, Herons's Formula, Surface Areas and Volumes, Statistics and Probability. Class 10 I have: Real Numbers, Polynomials, Quadratic Equations, Coordinate Geometry, Linear Equations in Two Variables, Triangles Similarity, Circle, Introduction to Trigonometry, Application of Trigonometry, Area related to circle, Surface Areas and Volumes, Statistics and Probability Class 11 I have: Sets, Relations and Functions, Trigonometric Functions, Permutations and Combinations, Linear Inequality, Binomial Theorem, Straight Lines, Conic Sections. Find us on youtube    / mathsphy   Find us on Facebook:   / www.mathsphy   Contact: Abhishek Agarwaal +9 7317769273 [email protected] [email protected] Find: (i) 93/2 (ii) 322/5 (iii) 163/4 (iv) 125-1/3 Number Systems Class 9th https://www.mathsphy.com/