Relations and Functions — Study Plan
Madhya Pradesh Board · Class 12 · Mathematics
A step-by-step study plan for Relations and Functions, Madhya Pradesh Board Class 12 Mathematics: what to learn first, what to practise and when to revise.
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Study Plan
Learn the Theory
Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: 1. Relations and Their Types, 2. Functions: One-One, Onto, and Bijective, 3. Composition of Functions and Inverse.
Practise
Solve the textbook exercises and extra practice questions. There are 119 questions available for this chapter.
Revise & Test
Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.
Spaced Revision
Come back to Relations and Functions after a week. Use flashcards for quick recall and try past exam questions on this chapter.
What to Focus On
- A relation in A is a subset of A × A.
- Empty relation: R = ϕ.
- Universal relation: R = A × A.
- Equivalence classes are mutually disjoint.
- The union of all equivalence classes is the whole set.
- For 2 divides a-b on Z, [0] is the even integers and [1] is the odd integers.
- One-one means distinct inputs have distinct outputs.
- Many-one means different inputs may have the same output.
- Onto means every codomain element has a preimage.
Common Mistakes to Avoid
A relation from a set to itself must connect every element to every other element.
Empty relation and universal relation mean the same thing.
If a relation is symmetric, then it must also be transitive.
Memory Tips
Empty relation and universal relation
Reflexive, symmetric, transitive
Equivalence relation as partition
Relation on integers given by 2 divides a-b
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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
Practice Quiz
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Important Questions
Exam-style questions with answers
Revision Notes
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Formula Sheet
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Chapter Summary
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Concept Maps
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Flashcards
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Syllabus
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NCERT Solutions
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