# Pure Mathematics - Class XI Resources

The following list of online resources are provided as a sample of curated resources. New resources shall be added as we come across interesting and relevant online materials.

#### 1. Determinants

Description: A video contains introduction to determinants.

Core Concepts: 11P-A1 Determinants.

#### 2. Determinants of Order 2

Description: A video contains determinants of order 2.

Core Concepts: 11P-A1 Determinants of order 2.

#### 3. Determinants of Order 3

Description: A video contains determinants of order 3.

Core Concepts: 11P-A1Determinants of order 3.

#### 4. Minors & Cofactors of Order 2

Description: A video contains minors and co-factor of order 2.

Core Concepts: 11P-A1 co-factors & minors.

#### 5. Minors & Cofactors of Order 3

Description: A video contains minors and co-factor of order 3.

Core Concepts: 11P-A1 Co-factors & minors.

#### 6. Cramer’s Rule

Description: A video contains Cramer’s rule: step by step method.

Core Concepts: 11P-A1 Cramer’s rule.

#### 7. Cramer’s Rule

Description: The web link contains worksheets contains Cramer’s rule worksheet.

Core Concepts: 11P-A1 Cramer’s rule.

#### 8. Determinants of Order 2

Description: The web link contains a worksheet on determinants of order 2.

Core Concepts: 11P-A1 Determinants.

#### 9. Determinants of Order 3

Description: The web link contains a worksheet on determinants of order 3.

Core Concepts: 11P-A1 Determinants.

#### 10. Minors & Co-factors

Description: A video contains minors and co-factor.

Core Concepts: 11P-A1 Minors & co-factors.

#### 11. Logarithm

Description: The web link contains a worksheet on exponent.

Core Concepts: 11P-A2 Law of exponent.

#### 12. Logarithm

Description: The web link contains the definition on logarithm.

Core Concepts: 11P-A2 Definition of logarithm.

#### 13. Logarithm

Description: The web link contains the laws and theorem on logarithm.

Core Concepts: 11P-A2 Laws of logarithms.

#### 14. Logarithm

Description: The video link contains evaluating logarithm.

Core Concepts: 11P-A2 Evaluating logarithm.

#### 15. Logarithm

Description: The weblink contains the application of logarithmic in reality.

Core Concepts: 11P-A2 Application of logarithm.

#### 16. Binomial Theorem

Description: The link guides on binomial expansion.

Core Concepts: 11P-A3 Binomial expansion.

#### 17. Binomial Theorem

Description: The link explains the Pascal’s triangle.

Core Concepts: 11P-A3 Pascal’s triangle.

#### 18. Binomial Theorem

Description: The web link contains the properties of binomial theorem.

Core Concepts: 11P-A3 Properties of binomial theorem.

#### 19. Binomial Theorem

Description: The web link contains the demonstration on binomial expansion.

Core Concepts: 11P-A3 Binomial expansion.

#### 20. Binomial Theorem

Description: The web link contains the finding of general term.

Core Concepts: 11P-A3 General term.

#### 21. Complex Numbers

Description: The web link contains notes and a video on complex numbers.

Core Concepts: 11P-A4 Complex numbers.

#### 22. Complex Numbers

Description: A video contains an introduction to complex numbers.

Core Concepts: 11P-A4 Complex numbers.

#### 23. Solving Complex Numbers

Description: A video contains how to solve an equation involving complex numbers.

Core Concepts: 11P-A4 Complex numbers.

#### 24. Solving Complex Numbers

Description: A video contains how to solve an equation involving complex numbers.

Core Concepts: 11P-A4 Complex numbers.

#### 25. Conjugate Numbers

Description: A video contains on conjugate numbers.

Core Concepts: 11P-A4 conjugate numbers.

#### 26. Factorisation

Description: A video contains factorisation of a quadratic equation.

Core Concepts: 11P-B1 Factorisation.

#### 27. Factor Theorem

Description: The web link contains worksheet on factor theorem.

Core Concepts: 11P-B1 Factor theorem.

#### 28. Remainder Theorem

Description: A video contains the factor and remainder theorem of cubic polynomials.

Core Concepts: 11P-B1 Remainder theorem.

#### 29. Remainder Theorem

Description: A worksheet contains finding remainder of cubic polynomials.

Core Concepts: 11P-B1 Remainder theorem.

#### 30. Factor Theorem

Description: A video explains how to solve quadratic equations using factor Theorem.

Core Concepts: 11P-B1 Factor theorem.

#### 31. Factor Theorem

Description: A video explains how to solve quadratic equations using factor Theorem.

Core Concepts: 11P-B1 Factor Theorem.

#### 32. Factorisation

Description: A video explains how to solve quadratic equations using a factorisation.

Core Concepts: 11P-B2 Factorisation.

#### 33. Factorisation

Description: A web link contains the worksheets on factorisation.

Core Concepts: 11P-B2 Factorisation.

#### 34. Formula Method

Description: A video explains how to solve quadratic equations using a formula method.

Core Concepts: 11P-B2 Formula method.

#### 35. Formula Method

Description: A video explains how to solve quadratic equations using a formula method.

Core Concepts: 11P-B2 Formula method.

Description: The web link contains the GeoGebra spreadsheet to explore the characteristics of different forms of quadratic function.

#### 37. Nature of Roots

Description: A video explains the nature of roots.

Core Concepts: 11P-B1 Nature of roots.

#### 38. Partial Fraction

Description: The web links contain the interpretation of partial fraction.

Core Concepts: 11P-B3 Meaning of partial fraction.

#### 39. Partial Fraction

Description: The web links contain the demonstration of decomposition of partial fraction.

Core Concepts: 11P-B3 Decomposition of partial fraction.

#### 40. Limit

Description: The web links contain the explanation of meaning of limit.

Core Concepts: 11P-B4 Meaning of limit.

#### 41. Limit

Description: The web links contain the meaning of left hand limit and right hand limit and its computation.

Core Concepts: 11P-B4 Left and right limit.

#### 42. Limit

Description: The web links contain theorems on limits.

Core Concepts: 11P-B4 Theorems on limits.

#### 43. Limit

Description: The following web links contain various method of evaluating algebraic limits.

Core Concepts: 11P-B4 Evaluating algebraic limit.

#### 44. Limit

Description: The web link contains a video on evaluating trigonometric limits.

Core Concepts: 11P-B4 Evaluating trigonometric limit.

#### 45. Continuous Function

Description: A video contains a continuous function.

Core Concepts: 11P-B5 Continuous function.

#### 46. Test continuity of Function

Description: A video contains test continuity of function.

Core Concepts: 11P-B5 Test continuity of function.

#### 47. Removable Continuity

Description: A video contains removable continuity.

Core Concepts: 11P-B5 Removable Continuity.

#### 48. Continuity Over an Interval

Description: A video contains continuity over an interval.

Core Concepts: 11P-B5 Removable Continuity.

#### 49. Test Continuity of Function

Description: The web link contains a worksheet on test continuity of function.

Core Concepts: 11P-B5 Test continuity of function.

#### 50. Continuous Function

Description: The web link contains questions on continuous functions in pdf.

Core Concepts: 11P-B5 Continuous function.

#### 51. Test Continuity of Function

Description: A video contains use of graph to test continuity.

Core Concepts: 11P-B5 Test continuity of function.

#### 52. Continuity & Discontinuity of Function

Description: The web link provide multiple choice questions on continuity and discontinuity of function.

Core Concepts: 11P-B5 Continuity & discontinuity of function.

#### 53. Differentiation

Description: A video contains a history on calculus.

Core Concepts: 11P-B6 Differentiation.

#### 54. Differentiation

Core Concepts: 11P-B6 Differentiation.

#### 55. First Principle of Differentiation

Description: This video contains on how to differentiate using a first principle.

Core Concepts: 11P-B6 First Principle.

#### 56. Differentiation - Product Rule

Description: This video contains how to differentiate using a product rule.

Core Concepts: 11P-B6 Product rule.

#### 57. Differentiation - Quotient Rule

Description: This video contains how to differentiate using a quotient rule.

Core Concepts: 11P-B6 Quotient rule.

#### 58. Differentiate T-Function

Description: A video contains how to differentiate t-function.

Core Concepts: 11P-B6 Differentiate t-functions.

#### 59. Derivatives Application

Description: A video contains application of derivatives.

Core Concepts: 11P-B6 Derivatives application.

#### 60. Derivatives Application

Description: A video contains application of derivatives.

Core Concepts: 11P-B6 Derivatives application.

#### 61. Derivatives Application

Description: A video contains application of derivatives.

Core Concepts: 11P-B6 Derivatives application.

#### 62. Integration

Description: The web link contains the meaning of integration.

Core Concepts: 11P-B7 Meaning of integration.

#### 63. Integration

Description: The link contains the evaluation of integration.

Core Concepts: 11P-B7 Evaluation of integration.

#### 64. Integration

Description: The link contain video on computing integration by substitution.

Core Concepts: 11P-B7 Integration by substitution.

#### 65. Addition & Subtraction Formula

Description: This video shows the addition formula and subtraction formula.

Core Concepts: 11P-C1 Addition & subtraction formula.

#### 66. Addition & Subtraction Formula

Description: A video contains the derivation of a sum and subtraction formula.

Core Concepts: 11P-C1 Addition & subtraction formula.

#### 67. Addition & Subtraction Formula

Description: This video contains problem solving using addition and subtraction formula.

Core Concepts: 11P-C1 Addition & subtraction formula.

#### 68. Product Formula

Description: This video provides the understanding on converting a product into sum or difference and vice-versa.

Core Concepts: 11P-C1 Product formula.

#### 69. Double Angle Formula

Description: This video contains a concept on a double formula.

Core Concepts: 11P-C1 Double angle.

#### 70. Half Angle Formula

Description: This video contains concept on half formula.

Core Concepts: 11P-C1 Half angle.

#### 71. Triple Angle Formula

Description: This formula derive triple angle formula.

Core Concepts: 11P-C1 Triple angle.

#### 72. Compound Angle

Description: This web link provides solved examples on compound angle.

Core Concepts: 11P-C1 Compound angle.

#### 73. Compound Angle

Description: Points and their co-ordinates in 2D.

Core Concepts: 11P-D1 Cartesian co-ordinates.

#### 74. Distance Formula

Description: This video contains how to find distance between the points and distance of a point from the origin using distance formula.

Core Concepts: 11P-D1 Distance formula.

#### 75. Distance Formula

Core Concepts: 11P-D1 Distance formula.

#### 76. Section Formula

Description: This web link contains a section formula.

Core Concepts: 11P-D1 Section formula.

#### 77. Internal Section Formula

Description: This video contains derivation of internal section formula.

Core Concepts: 11P-D1 Internal section formula.

#### 78. Internal Section Formula

Description: This web link contains solved examples of internal section formula.

Core Concepts: 11P-D1 Internal section formula.

#### 79. External Section Formula

Description: This video contains solved examples of External section formula.

Core Concepts: 11P-D1 External section formula.

#### 80. Centroid of Triangle

Description: This video explains how to find the coordinates of the centroid of the triangle.

Core Concepts: 11P-D1 Centroid of triangle.

#### 81. Area of Triangle

Description: This video is on how to calculate the area of a triangle.

Core Concepts: 11P-D1 Area of triangle.

#### 82. Area of Triangle

Core Concepts: 11P-D1 Area of quadrilateral.

#### 83. Slope Intercept Form

Description: This web link contains a video on equation of line in slope intercept form.

Core Concepts: 11P-D2 Slope intercept form.

#### 84. Point Slope Form

Description: This web link contains a video on the equation of line in point slope form.

Core Concepts: 11P-D2 Point slope form.

#### 85. Two Points Form

Description: This web link contains a video on the equation of line in two points form.

Core Concepts: 11P-D2 Two points form.

#### 86. Normal Form

Description: This web link contains notes on the equation of line in normal form with solved examples.

Core Concepts: 11P-D2 Normal form.

#### 87. Intercept Form

Description: This web link contains notes on the equation of line in intercept form with solved examples.

Core Concepts: 11P-D2 Intercept form.

#### 88. Distance of a Point from a Line

Description: This web link contains problem solving on distance between two points.

Core Concepts: 11P-D2 Distance of a point from line.

#### 89. Distance of a Point from a Line

Description: This web link contains practice questions on distance of a point from a line.

Core Concepts: 11P-D2 Distance of a point from a line.

#### 90. Distance Between Parallel Lines

Description: This web link contains derivation of distance between parallel lines and problem solving.

Core Concepts: 11P-D2 Distance between parallel line.

#### 91. Angular Bisector

Description: This web link contains a derivation of angular bisector and problem solving.

Core Concepts: 11P-D2 Angular bisector.

#### 92. Equation of Circle

Description: A video contains derivation on standard from.

Core Concepts: 11P- D3 Equation of circle.

#### 93. Equation of Circle

Description: A video contains derivation on standard from.

Core Concepts: 11P- D3 Equation of circle.

#### 94. Equation of Circle

Description: A video contains derivations on various forms of the equation of circle.

Core Concepts: 11P- D3 Equation of circle.

#### 95. Equation of Circle

Description: A video contains derivations of the equation of circle in parametric form.

Core Concepts: 11P- D3 Equation of circle.

#### 96. Theorems on Circle

Description: A video contains Theorems on chords of a circle.

Core Concepts: 11P- D3 Theorems on circle.

#### 97. Theorems on Circle

Description: A video contains Theorems on arcs and an angle.

Core Concepts: 11P- D3 Theorems on circle.

#### 98. Theorems on Circle

Description: A video contains Theorems on arcs and an angle.

Core Concepts: 11P- D3 Theorems on circle.

#### 99. Theorems on Circle

Description: A video contains Theorems on tangent lines and circles.

Core Concepts: 11P- D3 Theorems on circle.

#### 100. Theorems on Circle

Description: A video contains Theorems on tangent lines and circles.

Core Concepts: 11P- D3 Theorems on circle.

#### 101. Theorems on Circle

Description: A video contains Theorems on tangent lines and circles.

Core Concepts: 11P- D3 Theorems on circle.

#### 102. Theorems on Circle

Description: A video contains Theorems on angles in alternative segment.

Core Concepts: 11P- D3 Theorems on circle.

#### 103. Measure of Central Tendency

Description: The web link contains the meaning and computation of mean, median and mode.

Core Concepts: 11P-E1 Mean, median and mode.

#### 104. Measure of Central Tendency

Description: The web link contains video on computation of mean, median and mode.

Core Concepts: 11P-E1 Mean, median and mode.

#### 105. Dispersion

Description: The web link contains the meaning of dispersion.

Core Concepts: 11P-E2 Dispersion.

#### 106. Dispersion

Description: The web links contains the computation of quartiles.

Core Concepts: 11P-E2 Quartiles.

#### 107. Dispersion

Description: The web link contains the meaning of standard deviation .

Core Concepts: 11P-E2 Standard deviation.

#### 108. Dispersion

Description: The web links contain the computation of standard deviation.

Core Concepts: 11P-E2 Standard deviation calculation.

#### 109. Dispersion

Description: The web link contains the meaning of mean deviation.

Core Concepts: 11P-E2 mean deviation.

#### 110. Dispersion

Description: The web link contains the explanation of combined mean and combined standard deviation.

Core Concepts: 11P-E2 Combined mean and standard deviation.

#### 111. Dispersion

Description: The web link contains the calculation of quartiles, standard deviation and mean deviation using excel.

Core Concepts: 11P-E2 Dispersion.

#### 112. Probability Set theory

Description: This web link contains notes and solved examples of set theory.

Core Concepts: 11P-E3 Set Theory. 