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Sections
Sets
Pick a section. You read the idea first, then answer questions on it.
1. What a set is, and when two sets are the same
1 idea
Read
2. Writing a set down: roster and set-builder
2 ideas
Read
3. Empty, finite, infinite
1 idea
Read
4. Subsets, and the intervals they name on the real line
3 ideas
Read
5. The power set — every subset at once
2 ideas
Read
6. Fixing the universe, and drawing it
2 ideas
Read
7. The four operations
6 ideas
Read
8. Laws the operations obey
2 ideas
Read
9. Counting without double-counting
2 ideas
Read
10. One question, five moves
1 idea
Read
11. Two traps this chapter sets
2 ideas
Read
12. Practice set
6 ideas
Read
13. Chapter-end problems
1 idea
Read
14. JEE-level practice (item bank)
1 idea
Read