Which of the following is an identity element of the binary operation (*)?

Oracle 12c: SQL
3rd Edition
ISBN:9781305251038
Author:Joan Casteel
Publisher:Joan Casteel
Chapter1: Overview Of Database Concepts
Section: Chapter Questions
Problem 6MC
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Which of the following is an identity element
of the binary operation (*)?
Possible Answers:
e *b = e?
e * b = eb
e * b = 62
b * b = e
e *b = b
Transcribed Image Text:Which of the following is an identity element of the binary operation (*)? Possible Answers: e *b = e? e * b = eb e * b = 62 b * b = e e *b = b
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