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Prove that if a, b e R, then (a) -(a+b) = (-a) + (-b), (b) (-a)·(-b) = a · b,

Prove that if a, b e R, then (a) -(a+b) = (-a) + (-b), (b) (-a)·(-b) = a · b,

Advanced Engineering Mathematics
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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The Algebraic And Order Properties of Real Number

Please answer number 2a and 2b

Prove that if a,b e R, then (a) -(a+b) = (-a) + (-b), (b) (-a) · (-b) = a · b,
Transcribed Image Text:Prove that if a,b e R, then (a) -(a+b) = (-a) + (-b), (b) (-a) · (-b) = a · b,
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