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Syllabus
Principle of Mathematical Induction — Syllabus
NIOS · Class 12 · Mathematics
What Principle of Mathematical Induction covers in NIOS Class 12 Mathematics: 4 topics, for the 2026-27 session.
45 questions25 flashcards5 concepts
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4 Topics · NIOS Class 12 Mathematics · 2026-27
Topics in Principle of Mathematical Induction
1
1. Understanding Statements and Propositions
- A statement (or proposition) is a sentence that is either definitively true or definitively false, but never both
- Not all sentences are statements - questions, exclamations, and open sentences without fixed domains are NOT statements
- Open sentences like 'x - 5 = 7' become statements only when the variable's domain is specified or when quantified
2
2. The Principle of Mathematical Induction - Statement and Understanding
- Mathematical induction consists of TWO MUST-SATISFY conditions that work together like climbing a ladder
- BASE CASE: P(1) must be true - this is the first rung of the ladder
- INDUCTION CASE: IF P(k) is true, THEN P(k+1) must be true - this is the mechanism that takes you from one rung to the next
3
3. Proofs Using Mathematical Induction - Sum Formulas
- SUM FORMULA PROBLEMS: Prove that the sum of certain sequences equals a given formula
- Common patterns: arithmetic sequences (1+2+...+n), odd numbers (1+3+5+...), cubes (1³+2³+3³+...)
- Strategy: Use induction hypothesis to substitute the known formula for sum up to k, then show sum to k+1 follows the pattern
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4. Proofs Using Mathematical Induction - Divisibility
- DIVISIBILITY PROBLEMS: Prove that some expression is divisible by a given number for all natural numbers n
- A number is divisible by d if we can write it as d×m for some integer m
- Strategy: Assume P(k) says the expression with k is divisible by d (equals d×m for some integer m), then show P(k+1) is also divisible by d
Key Concepts
A mathematical statement (or proposition)The Principle of Mathematical Induction statesThe base case is the firstThe inductive step involves two partsEvery proof by mathematical induction follows
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What are the important topics in Principle of Mathematical Induction for NIOS Class 12 Mathematics?
Key topics in Principle of Mathematical Induction include Understanding Statements and Propositions, The Principle of Mathematical Induction - Statement and Understanding, Proofs Using Mathematical Induction - Sum Formulas, Proofs Using Mathematical Induction - Divisibility. Study these first, then practise questions on each for the NIOS Class 12 board exam.
How should I revise Principle of Mathematical Induction for the NIOS Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Principle of Mathematical Induction. Revise definitions regularly and use flashcards for quick recall before the exam.
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