Class 9 Math NCERT all chapters formula in one Video || Math all formula class 9 || All formula math

Class 9 Math NCERT all chapters formula in one Video || Math all formula class 9 || All formula math
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NUMBER SYSTEMS 1
1.1 Introduction 1
1.2 Irrational Numbers 5
1.3 Real Numbers and their Decimal Expansions 8
1.4 Operations on Real Numbers 15
1.5 Laws of Exponents for Real Numbers 21
1.6 Summary 24
2. POLYNOMIALS 25
2.1 Introduction 25
2.2 Polynomials in One Variable 25
2.3 Zeroes of a Polynomial 29
2.4 Factorisation of Polynomials 32
2.5 Algebraic Identities 36
2.6 Summary 42
3. COORDINATE GEOMETRY 43
3.1 Introduction 43
3.2 Cartesian System 46
3.3 Summary 53
4. LINEAR EQUATIONS IN TWO VARIABLES 55
4.1 Introduction 55
4.2 Linear Equations 55
4.3 Solution of a Linear Equation 57
4.4 Summary 59
5. INTRODUCTION TO EUCLID’S GEOMETRY 60
5.1 Introduction 60
5.2 Euclid’s Definitions, Axioms and Postulates 62
5.3 Summary 68
2024-25
LINES AND ANGLES 69
6.1 Introduction 69
6.2 Basic Terms and Definitions 70
6.3 Intersecting Lines and Non-intersecting Lines 72
6.4 Pairs of Angles 72
6.5 Lines Parallel to the Same Line 78
6.6 Summary 82
7. TRIANGLES 83
7.1 Introduction 83
7.2 Congruence of Triangles 83
7.3 Criteria for Congruence of Triangles 86
7.4 Some Properties of a Triangle 94
7.5 Some More Criteria for Congruence of Triangles 99
7.6 Summary 103
8. QUADRILATERALS 104
8.1 Properties of a Parallelogram 104
8.2 The Mid-point Theorem 111
8.3 Summary 115
9. CIRCLES 116
9.1 Angle Subtended by a Chord at a Point 116
9.2 Perpendicular from the Centre to a Chord 118
9.3 Equal Chords and their Distances from the Centre 119
9.4 Angle Subtended by an Arc of a Circle 122
9.5 Cyclic Quadrilaterals 125
9.6 Summary 129
10. HERON’S FORMULA 131
10.1 Area of a Triangle - by Heron’s Formula 131
10.2 Summary 136
11. SURFACE AREAS AND VOLUMES 137
11.1 Surface Area of a Right Circular Cone 137
11.2 Surface Area of a Sphere 141
11.3 Volume of a Right Circular Cone
11.4 Volume of a Sphere 148
11.5 Summary 150
12. STATISTICS 151
12.1 Ggraphical Representation of Data 151
12.2 Summary
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[@PayalQueen-ub3us]

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[@LKMVlogs1]

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[@rishabhyadav6198]

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[@TargettoExamsofficial]

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[@4xmorshot]

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