Sets · Class 11 Mathematics · Chapter 1
📐 Sets
CBSE Class 11 Science · Mathematics · Chapter 1
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Six free PDFs + an editable PPTX cover every angle of this chapter — read the deck, drill the MCQs, sit the full paper, then check against the marking scheme.
📖Notes Deck
Full lecture deck with teaching paragraphs, misconception red-boxes, and glossary. Read this first.
Download PDF →📝Quick Drill
15 pattern-tagged MCQs with per-Q time budget. Drill under a 20-min timer.
Download PDF →📄Exam Paper
Full exam-pattern paper with sections. Sit it closed-book before checking the marking scheme.
Download PDF →✅Marking Scheme + Topper Templates
Model answers + topper-template structures examiners reward with full credit.
Download PDF →⚡Cheat Sheet
1-page exam-day card: key points, top question patterns, 90-minute revision flow.
Download PDF →👨👩👧For Parents
1-page plain-language parent guide: what's being learned + questions to ask your child.
Download PDF →Top question patterns · CBSE annual / SQP aggregate
| 90% | Survey word problem with n(A∪B) = n(A)+n(B)−n(A∩B) (find only-one / neither) — Name the sets; write given n-values; apply inclusion–exclusion; answer the EXACT quantity asked. Draw the Venn diagram. | 3 MARKS |
| 65% | Power set / count subsets and proper subsets — n = |A| → subsets 2^n, proper 2^n−1. List size-ordered, never miss ∅ or A itself. | 2 MARKS |
| 70% | Convert roster ⇄ set-builder ⇄ interval — Solve any equation/inequality to list elements; for intervals match '(' ')' = open, '[' ']' = closed against ≤ / <. | 2 MARKS |
| 75% | Find A∪B, A∩B, A−B, A' for given sets — Take complement w.r.t. U; A−B = A∩B'; compute element by element and check (A')'=A. | 3 MARKS |
| 55% | State / verify / apply De Morgan's laws (with Venn shading) — (A∪B)'=A'∩B', (A∩B)'=A'∪B'. Verify by computing both sides from the elements, not by quoting. | 3 MARKS |
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