Leonhard Euler approached negative numbers by describing how they "ought to" behave arithmetically in relation to the known and accepted behavior of positive numbers. Justify Euler's claim that -a times -b should be the opposite of a times -b. What does "opposite" mean in this context? How does previous part imply that the product of

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.6: Inequalities
Problem 77E
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Leonhard Euler approached negative numbers by describing how they "ought to" behave arithmetically in relation to the known and accepted behavior of positive numbers.

    • Justify Euler's claim that -a times -b should be the opposite of a times -b. What does "opposite" mean in this context?
    • How does previous part imply that the product of two negative numbers must be positive?
    • How should a times -b be related to -a times b? Why?
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