Prove each of the following statements d) Prove that a + b is even if and only if a and b are both even or both odd.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.4: Mathematical Induction
Problem 25E
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Prove each of the following statements
d) Prove that a + b is even if and only if a and b are both
even or both odd.
e) Prove that -|a| ≤ a for all real numbers a.
1
1
f) Prove that + √1/2+ · + ··· + /> √n, for n = 2, 3, 4, ...
√3
Transcribed Image Text:Prove each of the following statements d) Prove that a + b is even if and only if a and b are both even or both odd. e) Prove that -|a| ≤ a for all real numbers a. 1 1 f) Prove that + √1/2+ · + ··· + /> √n, for n = 2, 3, 4, ... √3
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