High School Mathematics

Grade 10 (Age 15–16)

1. 1 Numbers and Sets of Numbers 10 solved exercises
2. 2 Algebra: Equations and Inequalities 11 solved exercises
3. 3 Functions 10 solved exercises
4. 4 Reference Functions 10 solved exercises
5. 5 Coordinate Geometry 10 solved exercises
6. 6 Vectors 10 solved exercises
7. 7 Equations of Lines and Linear Systems 10 solved exercises
8. 8 Descriptive Statistics 9 solved exercises
9. 9 Probability and Sampling 9 solved exercises

Grade 11 (Age 16–17)

1. 10 Quadratic Functions and Equations 11 solved exercises
2. 11 Functions and Variations 11 solved exercises
3. 12 Differentiation: A First Course 12 solved exercises
4. 13 Sequences: A First Course 11 solved exercises
5. 14 Trigonometry: The Unit Circle 11 solved exercises
6. 15 Vectors and Lines in the Plane 11 solved exercises
7. 16 The Scalar Product in the Plane 11 solved exercises
8. 17 Descriptive Statistics 10 solved exercises
9. 18 Probability and Random Variables 11 solved exercises
10. 19 The Binomial Distribution 11 solved exercises

Grade 12 (Age 17–18)

1. 20 Sequences 10 solved exercises
2. 21 Limits and Continuity 9 solved exercises
3. 22 Differentiation and Convexity 9 solved exercises
4. 23 Exponential and Logarithm 9 solved exercises
5. 24 Trigonometric Functions 9 solved exercises
6. 25 Integration 9 solved exercises
7. 26 Differential Equations 9 solved exercises
8. 27 Combinatorics and Counting 10 solved exercises
9. 28 Complex Numbers 10 solved exercises
10. 29 Arithmetic 10 solved exercises
11. 30 Matrices and Graphs 8 solved exercises
12. 31 Vectors, Lines and Planes in Space 9 solved exercises
13. 32 Conditional Probability and Independence 8 solved exercises
14. 33 Random Variables and the Binomial Distribution 8 solved exercises
15. 34 Sums of Random Variables and the Law of Large Numbers 8 solved exercises
16. 35 Continuous Random Variables 9 solved exercises

35 chapters — 35 online so far, and more publishing regularly. The complete book is already available as a free PDF you can read online.