# Class 9 Mathematics - IIT coaching

• ##### For Students – self prep and practice
• Topic wise key learning notes
• Topic wise basic and advanced practice
• IIT level practice tests with negative marking
• ##### For  Schools and individual tutors
• Create your own student groups
• Choose and assign the practice tests
1. Trigonometry
1.1 Trigonometric ratios Notes
1.2 Coterminal angles Notes
1.3 Trigonometric identities Notes
1.4 Compound angles Notes
1.5 Multiple and Sub-multiple angles Notes
1.6 Trigonometry transformation Notes
1.7 Graphs and Periodicity Notes
1.8 Trigonometric equations Notes
1.9 Inverse Trigonometry Notes
1.10 Trigonometric functions Notes
1.11 Trigonometric properties of triangles Notes
2. Surds
2.1 Surds Notes
2.2 Types of Surds Notes

2.4 Addition and subtraction of surds Notes

2.5 Multiplication and division of surds Notes
3. Logarithms
3.1 Logarithms definition Notes
3.2 Logarithmic functions Notes

3.3 Types of logarithms Notes
3.4 Laws of Logarithms Notes
3.5 Logarithmic tables Notes
4. Complex numbers
4.1 Complex numbers Notes
4.2 Operations on complex numbers Notes

4.3 Conjugate of complex number Notes

4.4 Cube roots of unity Notes

4.5 Argument of complex number Notes
4.6 nth roots of unity Notes
5.1 Factorization method Notes
5.2 Solving by Quadratic formula Notes

5.3 Roots and coefficients Notes
5.4 Conditions for common roots Notes
5.5 Solution of inequations Notes
6. Theory of equations
6.1 Transformation of equations Notes
1. Roots in A.P, G.P & H.P ( theory of equations WS 3)
7. Coordinate geometry
8. Pair of straight lines
1. Basics ( Pair of straight lines – WS1)
2. Pair of angle bisectors (Pair of straight lines – WS2)
3. Product of perpendiculars to the pair of lines ( pair of straight lines – WS3)

1. Permutations and combinations
1. Permutations (WS1)
2. Permutations with and without repetitions (WS2)
3. Sum and rank of words (WS3)
4. Combinations (WS4)
5. Circular permutations (WS4)
6. Applications of combinations (WS5)
7. Selection of one and more objects (WS6)
8. Number of divisors (WS6)
9. Division into groups (WS7)
2. Probability
1. Probability (WS1)
2. Conditional probability (WS1)
4. Baye’s theorem ( WS1)
3. Circles
1. Conic sections (WS1)
2. Theorems (WS1)
3. Concentric circles (WS1)
4. Parametric equation (WS1)
5. Chord joining two points (WS2)
6. Tangent line (WS2)
7. Pole and Polar (WS3)
8. Inverse points (Ws3)
9. Theorems (WS4 and WS5)
4. Progressions
1. Sequences ( Progressions WS1)
2. Arithmetic progression ( Progressions WS1)
3. Properties of AP ( Progressions WS1)
4. Sum to ‘n’ terms of AP ( WS2)
5. Geometrical progression ( WS3)
6. Progressions ( WS4)
7. Harmonical progression ( WS5)
8. Sum of ‘n’ natural numbers ( WS6)

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