Algebra · Class 11 Applied Mathematics · Chapter 2
🔢 Algebra — Sets, Relations & Functions, Sequences & Series
CBSE Class 11 Humanities & Commerce · Applied 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
| 92% | GP sum — finite Sₙ or infinite S∞ — Find a and r · finite: Sₙ = a(rⁿ−1)/(r−1) · infinite: check |r|<1 then S∞ = a/(1−r) · recurring decimals are infinite GPs in disguise. | 3 MARKS |
| 85% | AP nth term or sum of n terms — Identify a and d · term: aₙ = a+(n−1)d · sum: Sₙ = n/2[2a+(n−1)d] or n/2(a+l). | 3 MARKS |
| 80% | Venn-diagram counting word problem — Use |A∪B| = |A|+|B|−|A∩B| · draw the two circles · fill only-A, both, only-B, neither · verify the four regions sum to the total. | 4 MARKS |
| 78% | Cartesian product / domain-range / is-it-a-function — A×B = ordered pairs · domain = first elements, range = second · function test: every input exactly one output (no repeated x with different y). | 3 MARKS |
| 70% | Set type / power-set count / interval notation — Power set of n elements = 2ⁿ subsets · ∈ for element, ⊆ for subset · round bracket excludes, square bracket includes the endpoint. | 2 MARKS |
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