Relations and Functions
CBSE · Class 12 · Mathematics
Most important questions from Relations and Functions for CBSE Class 12 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.
Sample Questions
Let A = {1, 2, 3, 4} and B = {3, 4, 5, 6}. If R = {(x, y) ∈ A × B : x + y = 7}, find the number of ordered pairs in R.
Which of the following relations on set A = {1, 2, 3} are reflexive?
Let f: R → R be defined by f(x) = 3x - 5. Find the value of (f ∘ f)(2).
If R is an equivalence relation on set A = {1, 2, 3, 4, 5} and the equivalence classes are [1] = {1, 3, 5} and [2] = {2, 4}, how many ordered pairs are in R?
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What are the important topics in Relations and Functions for CBSE Class 12 Mathematics?
Relations and Functions covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Relations and Functions — CBSE Class 12 Mathematics?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
How many important questions are there in Relations and Functions?
There are 59 practice questions available for Relations and Functions. These cover multiple question types including MCQs, short answer, and long answer questions.
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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