Sets — Class 11 ISC Mathematics revision notes
A 3-page visual revision sheet for Sets, written for Class 11 ISC Mathematics. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Sets sheet covers
- What a set is, and the two ways of writing one
- The kinds of set worth naming
- The counting facts
- subsets of a set of n elements
- proper subsets
- subsets of size r
- two sets
- three sets
- The operations
- The laws, which are worth proving once and quoting after
- Venn diagrams, used properly
- Intervals, which are sets of real numbers
- The number sets, nested
- Survey problems, the standard application
- Cartesian products, the bridge to the next chapter
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Mathematics chapter by chapter against your real exam dates and free hours, and when the plan reaches Sets the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.