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Let the binary operation *, be defined as a * b = a + 2b, where a and b are real numbers. a. What is 2 * 3? b. Is * commutative? c. Is * associative?

Let the binary operation *, be defined as a * b = a + 2b, where a and b are real numbers. a. What is 2 * 3? b. Is * commutative? c. Is * associative?

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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7. Let the binary operation *, be defined as a * b = a + 2b, where a and b are real numbers. a. What is 2 * 3? b. Is * commutative? c. Is * associative?
Transcribed Image Text:7. Let the binary operation *, be defined as a * b = a + 2b, where a and b are real numbers. a. What is 2 * 3? b. Is * commutative? c. Is * associative?
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