1. Prove by induction that for all n € N>1 we have (a) (b) (c) 2 +3 2.3 9+ (9 × 10) + (9 × 100) ++ (9 × 10-1) = 10" - 1 52n-1 + 1 is divisible by 6
1. Prove by induction that for all n € N>1 we have (a) (b) (c) 2 +3 2.3 9+ (9 × 10) + (9 × 100) ++ (9 × 10-1) = 10" - 1 52n-1 + 1 is divisible by 6
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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
Transcribed Image Text:The image contains a problem set with mathematical induction tasks. The tasks are as follows:
1. Prove by induction that for all \( n \in \mathbb{N}_{\geq 1} \) we have:
(a) \( 2^n + 3 < 2^n \cdot 3 \)
(b) \( 9 + (9 \times 10) + (9 \times 100) + \cdots + (9 \times 10^{n-1}) = 10^n - 1 \)
(c) \( 5^{2n-1} + 1 \) is divisible by 6
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