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Relations and Functions

CBSE · Class 11 · Mathematics

Step-by-step guide to study Relations and Functions in CBSE Class 11 Mathematics. Topics to cover, practice strategy, and time allocation.

136 questions56 flashcards5 concepts

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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas, and key concepts.

2
Day 3

Practice Problems

Solve textbook exercises and additional practice questions. There are 136 questions available for this chapter.

3
Day 4

Revise & Test

Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding. Mark weak areas for re-revision.

4
Day 7

Spaced Revision

Revisit Relations and Functions after a week. Use flashcards for quick recall. Solve previous year questions from this chapter.

What to Focus On

  • Order matters in ordered pairs.
  • Cartesian product means all possible ordered pairs from two sets.
  • If either set is empty, the product is empty.

  • A relation is a subset of a cartesian product.
  • Domain = set of first elements.
  • Range = set of second elements.

  • A function is a relation with exactly one image for each domain element.
  • Domain of a function must be the whole set A.
  • A function is written as f: A → B.

Common Mistakes to Avoid

A Cartesian product is the same as a normal pair of sets, so A × B equals B × A.

If one set is empty, the Cartesian product is still formed using the other set.

The number of elements in A × B is n(A) + n(B).

Memory Tips

Cartesian product of two sets

Order matters in ordered pairs

Number of elements in A × B

Empty set rule for cartesian product

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Frequently Asked Questions

What are the important topics in Relations and Functions for CBSE Class 11 Mathematics?
Key topics in Relations and Functions include Relations and Functions – Complete Concept Map, Relations and Functions - Full Chapter Concept Hierarchy, Relations and Functions — Complete Concept Map. These are the concepts CBSE Class 11 examiners draw on most — study them first, then practise related questions.
How to score full marks in Relations and Functions — CBSE Class 11 Mathematics?
Understand the core concepts first, then work through the 136 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Relations and Functions

All 14 chapters — CBSE Class 11 Mathematics Study Plan

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