This math video tutorial provides a basic introduction into induction divisibility proofs. It explains how to use mathematical induction to prove if an alge

The proof by mathematical induction (simply known as induction) is a fundamental proof technique that is as important as the direct proof, proof by contraposition, and proof by contradiction. It is usually useful in proving that a

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So, by the principle of mathematical induction P(n) is true for all natural numbers n. Problem 2 : Use induction to prove that 10 n + 3 × 4 n+2 + 5, is divisible by 9, for all natural numbers n.

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