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Formula Sheet

Relations and Functions — Formula Sheet

CBSE · Class 11 · Mathematics

9 formulas from Relations and Functions (CBSE Class 11 Mathematics) on one page, grouped by topic. Covers Counting Relations and Function Tests.

136 questions56 flashcards9 formulas & key relations5 concepts

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9 Entries · 5 Sections

Formulas and Key Relations

1. Cartesian Product of Sets

P × Q = {(p, q) : p ∈ P, q ∈ Q}

n(A × B) = pq

Total number of relations = 2^(pq)

2. Relation

R ⊆ A × B

3. Function

f: A → B

4. Special Functions and Graphs

y = f(x) = x

f(x) = |x|

f(x) = [x]

Counting Relations and Function Tests

If n(A)=p and n(B)=q, then n(A × B)=pq.

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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 A pair of elements written, For two non, A relation from a non, The domain is the set. Study these first, then practise questions on each for Class 11 exams.
How many formulas are in Relations and Functions?
This sheet lists 9 formulas from Relations and Functions, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Relations and Functions for Class 11 exams?
Learn the core ideas first, then work through the 136 practice questions on Relations and Functions. Revise 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 CBSE Class 11 Mathematics Formula Sheet

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