1. Show that 2. Prove that Vn 3. Show that 2 n √2 is irrational. i=1 2 VI 2 I 4 the inequality 2

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Computer Language Theory

1. Show that
n
i=1
1
≤2
-
1
n
2. Prove that n ≥ 4 the inequality 2" <n! Holds.
3. Show that 2-√2 is irrational.
4. Prove that the set of all prime number is infinite.
Transcribed Image Text:1. Show that n i=1 1 ≤2 - 1 n 2. Prove that n ≥ 4 the inequality 2" <n! Holds. 3. Show that 2-√2 is irrational. 4. Prove that the set of all prime number is infinite.
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What is Mathematical Induction:

A method for establishing facts or proving conclusions about natural numbers is mathematical induction. In essence, it is employed to demonstrate that a claim is true for all natural numbers. An inductive proof requires two cases. The first, or base case, establishes the proposition that n = 0 without requiring any prior knowledge of other situations. The second example, the induction step, demonstrates that if the assertion is true for any particular case where n = k, then it must also be true for the subsequent case when n = k + 1. These two actions prove that the statement is true for all n=1 natural numbers.

To Prove:

We show that i=1n1i22-1n.

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