STD 9 Maths

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Created by Course All Last updated Mon, 06-Dec-2021 English
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Curriculum for this course
402 Lessons 39:08:04 Hours
Chapter 1 Number Systems
37 Lessons 04:42:29 Hours
  • Problem based on laws (Q-1) 00:16:28
  • Problems based on laws (Q-2) 00:10:30
  • Problem based on laws (Q-3) 00:04:45
  • Problems Q-1 00:03:26
  • Problems (Question-4) 00:02:57
  • Introduction and classification of numbers 00:17:35
  • Classification of number and problem (Q-1) 00:07:26
  • Classification of number and problems (Q-2) 00:16:56
  • Classification of number and problem (Q-3) 00:02:58
  • Irrational numbers 00:09:23
  • Real Numbers 00:03:35
  • Irrational numbers on number line 00:08:37
  • Irrational numbers on number line (Ex-2) 00:10:20
  • Irrational numbers on number line (Ex-3) 00:08:51
  • Irrational numbers on number line (Ex-5) 00:04:08
  • Irrational numbers on number line(Q-1) 00:13:57
  • Present X on number line 00:13:01
  • Real numbers on number line (Ex-2.665) 00:07:45
  • Real numbers on number line (Ex-5.37) 00:10:59
  • Real numbers and decimal expressions 00:12:17
  • Problem (Q-1) 00:07:02
  • Problem (Q-2) 00:05:01
  • Problem (Q-3) 00:07:46
  • Problem (Q-4 ) 00:05:05
  • Problem (Q-5) 00:06:01
  • Problem (Q-6) 00:06:32
  • Problem (Q-7) 00:06:55
  • Operations based on real numbers 00:12:55
  • Problems based on operations (Q-1) 00:04:01
  • Problems based on operations (Q-2 and 3) 00:06:35
  • Problem based on operations (Q-4 and 5 ) 00:04:39
  • Problems based on operations (Q-6) 00:08:06
  • Problems based on operations (Q-7) 00:05:51
  • Problems based on operations (Q-8) 00:04:50
  • Problems based on operations (Q-9) 00:05:16
  • Chapter - 1 Number System
  • TEST 00:00:00
  • EXAMPLE - 1 00:04:43
  • EXAMPLE-2 00:03:18
  • EXAMPLE-3 00:03:47
  • EXAMPLE -4 00:02:00
  • FACTORISATION OF POLYNOMIALS(FACTOR THEOREM) 00:07:51
  • SPLITING THE MIDDLE TERM 00:05:04
  • PROBLEMS : QUESTION -2 00:03:33
  • PROBLEMS : QUESTION-3 00:03:33
  • PROBLEMS: QUESTION- 4 00:02:47
  • PROBLEM : QUESTION - 5 00:05:28
  • PROBLEM : QUESTION - 6 00:05:03
  • ALGEBRIC IDENTITES AND EXAMPLE -1 00:06:39
  • EXAMPLE-1 00:16:10
  • EXAMPLE - 2 00:02:50
  • EXAMPLE - 3 00:07:07
  • EXAMPLE -4 00:07:33
  • EXAMPLE - 5 00:03:48
  • IDENTITY ALGEBRAIC IDENTITIES AND PROBLEMS (EXAMPLE - 1) 00:08:22
  • EXAMPLE - 2 00:06:58
  • EXAMPLE - 3 00:04:17
  • MIXED PROBLEMS (QUESTION - 1) 00:04:14
  • QUESTION - 2 00:02:15
  • QUESTION - 3 00:02:57
  • QUESTION - 4 00:07:44
  • QUESTION - 5 00:04:58
  • QUESTION - 6 00:04:39
  • QUESTION - 7 00:06:59
  • QUESTION - 8 00:04:51
  • ALGEBRAIC IDENTITIES (EX - 1) 00:07:51
  • INTRODUCTION & POLYNOMIALS & WHAT ARE POLYNOMIALS 00:19:33
  • POLYNOMIALS IN ONE VARIABLES - QUESTION - 1 00:06:28
  • QUESTION - 2 00:06:50
  • QUESTION - 4 00:04:04
  • POLYNOMIAL FUNCTION 00:01:41
  • POLYNOMIAL (i) FUNCTION 00:02:28
  • ZERO POLYNOMIAL AND CLASSIFICATION OF PLOYNOMIAL (MONOMIA,BINOMIAL & TRINOMIAL) 00:08:55
  • PROBLEMS - QUESTION -1 00:02:43
  • DEGREE OF POLYNOMIAL AND CLASSIFICATION 00:05:47
  • PROBLEM : QUESTION - 1 00:03:02
  • PROBLEMS : QUESTION - 2 00:03:31
  • GENERAL FORM AND DEGREE OF A ZERO POLYNOMIAL 00:05:00
  • ZERO OF A POLYNOMIAL 00:03:53
  • QUESTION - 1 00:04:09
  • POINTS TO BE REMEMBER WITH (QUESTION - 1) 00:04:05
  • QUESTION - 2 00:02:25
  • QUESTION - 3 00:04:08
  • QUESTION - 4 00:05:17
  • QUESTION - 5 00:04:12
  • HOW TO FIND A ZERO OF A POLYNOMIAL QUESTION - 1(1,2) 00:06:23
  • HOW TO FIND A ZERO OF A POLYNOMIAL QUESTION - 1(3,4) 00:03:28
  • REMINDER THEOREM AND EXAMPLE - 1 00:17:47
  • EXAMPLE - 2 00:07:45
  • REMINDER THEOREM AND EXAMPLE - 1 00:06:34
  • REMINDER THEOREM AND EXAMPLE - 1 00:06:34
  • EXAMPLE - 2 00:07:01
  • TEST 00:00:00
  • Chapter - 2 Polynomials
  • Introduction 00:07:57
  • Cartesian system 00:14:57
  • Coordinate geometry 00:17:02
  • Example -1 00:04:51
  • Example -2 00:08:46
  • Example-3 00:08:59
  • Problem (Q-1) 00:03:36
  • Problem (Q-2) 00:04:52
  • Ordered Pairs 00:05:14
  • Ordered pairs (Q-1) 00:14:01
  • Ordered Pairs (Q-2) 00:09:03
  • Ordered pairs (Q-3) 00:08:52
  • Ordered Pairs (Q-4) 00:05:53
  • Chapter - 3 Coordinate Geometry
  • TEST 00:00:00
  • Introduction (Ex-1) 00:25:43
  • Ex-2 00:05:58
  • Problems Q-1 00:03:26
  • Problems Q-2 00:05:25
  • Solving a linear equation 00:05:48
  • Solving a linear equation (Ex-1) 00:04:39
  • Solving a linear equation (Ex-2) 00:05:20
  • Problems (Q-1) 00:01:47
  • Problems (Q-2) 00:03:38
  • Problems (Q-3) 00:06:16
  • Geometrical representation and Graph (EX-1 and 2) 00:13:27
  • Problem (Q-1) 00:05:18
  • Problem (Q-2 and 3) 00:10:47
  • Graph (Ex-3) 00:07:34
  • Problem Q-4 00:06:25
  • Problem Q-5 00:04:35
  • Problem Q-6 00:09:48
  • Equation of linear parallel to the X and Y axis 00:16:24
  • Problem Q-1 00:03:47
  • Problem Q-2 00:04:46
  • Chapter - 4 Linear Equations in Two Variables
  • Test 00:00:00
  • 12 00:00:00
  • 13 00:00:00
  • 14 00:00:00
  • Introduction 00:08:24
  • Euclid's Definition 00:10:08
  • Euclid's axioms 00:06:33
  • Euclid's Postulates 00:13:17
  • Example-2 00:02:44
  • Example-2 00:06:57
  • Example-3 00:01:56
  • Problems (Question-1) 00:02:56
  • Problems(Q-2) 00:04:30
  • Problems (Question-3) 00:03:42
  • Chapter - 5 Introduction to Euclid s Geometry
  • Test 00:00:00
  • PROBLEMS (Q-1) 00:06:38
  • PROBLEMS (Q-2) 00:05:36
  • PROBLEMS (Q-3) 00:06:32
  • PARALLEL LINES AND TRANSVERSAL 00:11:08
  • PARALLEL LINES AND TRANSVERSAL (THEOREM-1) 00:04:53
  • PARALLEL LINES AND TRANSVERSAL (THEOREM- 2) 00:05:06
  • PARALLEL LINES AND TRANSVERSAL (THEOREM- 03) 00:04:01
  • PARALLEL LINES AND TRANSVERSAL (THEOREM-04) 00:03:47
  • LINES PARALLEL TO THE SAME LINE (THEOREM) 00:04:53
  • PROBLEMS (Q-1) 00:05:58
  • PROBLEMS(Q-2) 00:05:01
  • PROBLEMS (Q-3) 00:03:11
  • ANGLE SUM PROPERTY OF A TRIANGLE (THEOREM) 00:05:37
  • ANGLE SUM PROPERTY OF A TRIANGLE (THEOREM) 00:04:26
  • PROBLEMS (Q-1) 00:04:09
  • PROBLEMS (Q-2) 00:03:48
  • PROBLEMS (Q-3) 00:07:20
  • INTRO 00:01:48
  • BASIC TERMS AND DEFINITION 00:13:32
  • INTERSECTING AND NON INTERSECTING LINES 00:02:36
  • PAIR OF ANGLES 00:09:33
  • PAIR OF ANGLES (THEOREM-1) 00:05:57
  • Chapter - 6 Lines and Angles
  • INTRO 00:02:39
  • CONGRUENCE OF TRIANGLE 00:11:25
  • CRITERIA OF CONGRUENCE OF TRIANGLE 00:06:59
  • ASA CONGRUENCE RULE 00:11:09
  • ASA CONGRUENCE RULE 00:06:48
  • PROBLEMS (Q-1) 00:05:24
  • PROBLEMS (Q-2) 00:04:05
  • PROBLEMS (Q-3) 00:04:37
  • PROBLEMS (Q-4) 00:06:37
  • SOME PROPERTIES OF TRIANGLE (THEOREM 1) 00:05:29
  • SOME PROPERTIES OF TRIANGLE (THEOREM 2) 00:04:38
  • PROBLEMS (Q-1) 00:06:38
  • PROBLEMS (Q-2) 00:02:00
  • PROBLEMS (Q-3) 00:03:43
  • SOME MORE CRITERIA OF CONGRUENCE OF TRIANGLE 00:17:29
  • PROBLEMS (Q-1) 00:04:55
  • PROBLEMS (Q-2) 00:04:43
  • PROBLEMS (Q-3) 00:02:26
  • INEQUALITIES OF A TRIANGLE (THEOREM-1) 00:09:52
  • INEQUALITIES OF A TRIANGLE (THEOREM 2) 00:04:23
  • INEQUALITIES OF A TRIANGLE (THEOREM 3) 00:07:04
  • PROBLEMS (Q-1) 00:04:18
  • PROBLEMS (Q-2) 00:02:02
  • Chapter - 7 Triangles-c
  • Test 00:00:00
  • INTRO 00:05:44
  • ANGLE SUM PROPERTY OF A QUADRILATERALS 00:03:58
  • TYPES OF QUADRILATERALS 00:04:48
  • PROPERTIES OF PARALLELOGRAM ( THEOREM 1) 00:06:48
  • PROPERTIES OF PARALLELOGRAM ( THEOREM 2) 00:01:48
  • PROPERTIES OF PARALLELOGRAM ( THEOREM 3) 00:07:50
  • PROPERTIES OF PARALLELOGRAM ( THEOREM 4) 00:05:06
  • PROPERTIES OF PARALLELOGRAM ( THEOREM 5) 00:10:21
  • PROPERTIES OF PARALLELOGRAM ( THEOREM 6) 00:05:13
  • PROPERTIES OF PARALLELOGRAM ( THEOREM 7) 00:08:26
  • PROPERTIES OF PARALLELOGRAM ( THEOREM 8) 00:04:23
  • PROBLEMS (Q 1) 00:05:36
  • PROBLEMS (Q 2) 00:04:44
  • PROBLEMS (Q 3) 00:11:45
  • PROBLEMS (Q 4) 00:03:28
  • PROBLEMS (Q 5) 00:08:21
  • MID POINT THEOREM 1 00:08:01
  • MID POINT THEOREM 2 00:10:28
  • PROBLEMS (Q 1) 00:04:18
  • PROBLEMS (Q 2) 00:08:55
  • PROBLEMS (Q 3) 00:10:16
  • Chapter - 8 Quadrilaterals
  • Test 00:00:00
  • INTRO 00:10:16
  • FIGURES ON THE SAME BASE AND BETWEEN THE SAME PARALLELS 00:10:03
  • PROBLEMS (Q-1) 00:07:36
  • PARALLELOGRAMS ON THE SAME BASE AND BETWEEN THE SAME PARALLELS 00:10:38
  • EXAMPLE 00:05:29
  • PROBLEMS (Q-1) 00:04:04
  • PROBLEMS (Q-2) 00:06:29
  • PROBLEMS (Q-3) 00:04:25
  • TRIANGLES ON THE SAME BASE AND BETWEEN THE SAME PARALLELS 00:15:01
  • THEOREM 00:08:35
  • EXAMPLE 00:03:32
  • PROBLEMS (Q-1) 00:04:43
  • PROBLEMS (Q-2) 00:14:50
  • PROBLEMS (Q-3) 00:02:27
  • PROBLEMS (Q-4) 00:03:22
  • PROBLEMS (Q-5) 00:06:45
  • Chapter - 9 Areas of Parallelograms and Triangles
  • Test 00:00:00
  • INTRODUCTION 00:05:35
  • CIRCLE AND ITS RELATED TERMS 00:08:21
  • ARC AND CIRCUMFERENCE 00:05:28
  • SEGMENT AND SECTOR 00:05:31
  • PROBLEM(QUE - 1) 00:04:31
  • ANGLE SUBTENDED BY A CHORD AT A POINT 00:05:25
  • THEOREM - 2 00:03:54
  • THEOREM - 1 PERPENDICULAR FROM THE CENTRE TO A CHORD 00:03:23
  • THEOREM - 2 00:04:02
  • CIRCLE THROUGH THREE POINTS 00:20:16
  • PROBLEM (QUE-1) 00:04:57
  • PROBLEM (Q-2) 00:07:20
  • EQUAL CHORDS AND THEIR DISTANCE FROM CENTRE 00:09:50
  • EQUAL CHORDS AND THEIR DISTANCE FROM THE CENTRE(THEOREM-2) 00:09:32
  • QUESTION -1 00:08:56
  • QUESTION - 2 00:05:08
  • QUESTION - 3 00:04:31
  • ANGLE SUBTANDED BY AN ARC OF A CIRCLE 00:13:41
  • THEOREM - 2 00:04:53
  • THEOREM - 3 00:10:13
  • THEOREM - 4 00:03:23
  • CYCLIC QUADRILATERALS 00:10:53
  • CYCLIC QUADRILATERALS (THEOREM - 2) 00:07:02
  • EXAMPLE - 1 00:03:53
  • EXAMPLE - 2 00:02:47
  • PROBLEM (QUE - 1) 00:05:37
  • PROBLEM (QUE - 2) 00:01:56
  • PROBLEM (QUE - 3) 00:06:58
  • PROBLEM (QUE - 4 ) 00:05:46
  • PROBLEM (QUE. - 5) 00:03:54
  • Chapter - 10 Circles
  • Test 00:00:00
  • INTRO 00:03:48
  • BASIC CONSTRUCTION -1 00:06:45
  • BASIC CONSTRUCTION -2 00:09:02
  • BASIC CONSTRUCTION -3 00:03:32
  • PROBLEMS (Q-1) 00:09:46
  • PROBLEMS (Q-2) 00:09:56
  • PROBLEMS (Q-3) 00:15:13
  • TRIANGLE CONSTRUCTION - 1 00:08:19
  • TRIANGLE CONSTRUCTION - 3 00:10:42
  • PROBLEMS (Q-1) 00:07:35
  • PROBLEMS (Q-2) 00:06:08
  • PROBLEMS (Q-3) 00:05:30
  • PROBLEMS (Q-4) 00:04:50
  • Chapter - 11 Geometric Constructions
  • Test 00:00:00
  • INTRO 00:17:04
  • HERONS FORMULA 00:09:41
  • HERONS FORMULA(EX-1) 00:06:58
  • HERONS FORMULA(EX-2) 00:07:31
  • PROBLEMS (Q-1) 00:04:58
  • PROBLEM (QUE - 2) 00:04:57
  • PROBLEM (QUE - 3) 00:04:19
  • APPLICATION OF HERONS FORMULA (Q-1) 00:13:02
  • APPLICATION OF HERONS FORMULA (Q-2) 00:09:13
  • APPLICATION OF HERONS FORMULA (Q-3) 00:05:47
  • APPLICATION OF HERONS FORMULA (Q-4) 00:06:32
  • Chapter - 12 Heron s Formula
  • Test 00:00:00
  • Chapter - 13 Surface Areas and Volumes
  • INTRODUCTION 00:02:45
  • SURFACE AREA OF CUBE,CUBOID AND CONE 00:08:24
  • PROBLEM (QUE - 1) 00:04:59
  • QUESTION - 3 00:04:57
  • QUESTION - 2 00:08:14
  • QUESTION - 3 00:06:21
  • QUESTION - 4 00:13:45
  • SURFACE AREA OF A RIGHT CIRCULAR CYLINDER 00:04:01
  • QUESTION - 1 00:02:36
  • QUESTION - 2 00:05:10
  • QUESTION - 3 00:03:26
  • QUESTION - 4 00:05:35
  • SURFACE AREA OF RIGHT CIRCULAR CONE 00:07:57
  • QUESTION - 1 00:02:16
  • QUESTION - 2 00:04:02
  • QUESTION - 3 00:03:34
  • PROBLEM (QUESTION - 4) 00:04:07
  • SURFACE AREA OF A SPHERE 00:05:15
  • PROBLEM (QUE - 1) 00:01:43
  • PROBLEM (QUE - 2 & 3) 00:04:28
  • PROBLEM (QUE - 4) 00:04:00
  • PROBLEM (QUE - 5) 00:04:31
  • VOLUME OF CUBOID AND CUBE 00:04:34
  • PROBLEM (QUE. - 1) 00:02:51
  • QUESTION - 2 00:03:08
  • QUESTION - 3 00:08:19
  • QUESTION - 4 00:03:26
  • VOLUME OF A CYLINDER 00:01:33
  • QUESTION - 1 00:04:53
  • QUESTION - 2 00:03:46
  • QUESTION - 4 00:04:38
  • VOLUME OF A RIGHT CIRCULAR CONE 00:03:38
  • PROBLEM (QUE - 1) 00:01:25
  • PROBLEM (QUE - 2 & 3) 00:05:11
  • PROBLEM (QUE-4) 00:04:16
  • VOLUME OF SPHERE 00:01:00
  • PROBLEM (QUE - 1) 00:03:48
  • PROBLEM (QUE - 2) 00:02:54
  • PROBLEM (QUE - 3) 00:03:12
  • VOLUME OF HEMISPHERE 00:00:51
  • PROBLEM (QUE -1) 00:02:46
  • PROBLEM (QUE - 2) 00:05:20
  • Test 00:00:00
  • INTRODUCTION 00:02:06
  • COLLECTION OF DATA 00:01:48
  • PRESENTATION OF DATA 00:20:49
  • Problems (Que-1) 00:03:27
  • PROBLEM (QUE-2) 00:04:46
  • PROBLEM (QUE - 3) 00:05:00
  • PROBLEM (QUE-4) 00:04:25
  • GRAPHICAL REPESENTATION OF DATA -BAR GRAPHS 00:08:41
  • HISTOGRAM 00:11:02
  • FREQUENCY POLYGON 00:14:15
  • PROBLEM (QUE -1) 00:02:16
  • PROBLEMS (Q-2) 00:04:00
  • PROBLEM (QUE-3) 00:01:48
  • PROBLEMS (Q-4) 00:04:04
  • Chapter - 14 Statistics
  • Test 00:00:00
  • INTRO 00:10:40
  • TRIAL AND EVENT 00:01:55
  • FORMULA (EX 1) 00:07:25
  • EX 2 00:08:15
  • PROBLEMS (Q 1) 00:06:06
  • PROBLEMS (Q 2) 00:05:37
  • PROBLEMS (Q 3) 00:03:01
  • Chapter - 15 Probability
  • PROBLEMS (Q 4) 00:04:42
  • PROBLEMS (Q 5) 00:03:26
  • PROBLEMS (Q 6) 00:05:19
  • PROBLEMS (Q 7) 00:03:54
  • PROBLEMS (Q 8) 00:03:24
  • Test 00:00:00
  • INTRO 00:03:45
  • MATHEMATICALLY ACCEPTABLE STATEMENTS 00:03:41
  • MATHEMATICALLY ACCEPTABLES STATEMENTS (EX-1) 00:07:31
  • MATHEMATICALLY ACCEPTABLES STATEMENTS (EX-2) 00:02:25
  • MATHEMATICALLY ACCEPTABLES STATEMENTS (COUNTER EX) 00:05:01
  • PROBLEMS (Q-1) 00:02:49
  • PROBLEMS (Q-2) 00:02:14
  • PROBLEMS (Q-3) 00:02:17
  • DIDUCTIVE REASONING 00:04:36
  • PROBLEMS (Q-1) 00:03:55
  • THEOREMS,CONJECTIVES AND AXIOMS 00:07:14
  • THEORMS,CONJECTIVES AND AXIOMS 00:11:17
  • PROBLEMS (Q-1) 00:03:45
  • PROBLEMS (Q-2) 00:04:09
  • PROBLEMS (Q-2) 00:04:09
  • WHAT IS A MATHEMATICAL PROOF ?(THEOREM-1) 00:10:11
  • WHAT IS A MATHEMATICAL PROOF? (THEOREM-2) 00:02:12
  • WHAT IS A MATHEMATICAL PROOF? (THEOREM-3) 00:07:05
  • PROBLEM (Q-1) 00:03:29
  • PROBLEM (Q-2) 00:02:32
  • PROBLEM (Q-3) 00:04:59
  • INTRO 00:05:39
  • WORD PROBLEMS(EX-1) 00:08:15
  • WORD PROBLEMS(EX-2) 00:09:16
  • CONCLUSION 00:03:39
  • PROBLESMS (Q-1) 00:05:27
  • PROBLEMS (Q-2) 00:06:36
  • SOME MATHEMATICAL MODELS 00:09:04
  • SOME MATHEMATICAL MODELS (EX-1) 00:09:30
  • SOME MATHEMATICAL MODELS 00:10:59
  • THE PROCESS OF MODELLING 00:10:02
  • PROBLEMS (Q-1) 00:00:52
  • PROBLEMS (Q-2) 00:02:02
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