Which are binary operations? E xplain who or why not . A) On the positive integers ,that is , Z^+,a*b=a/b B)On Z^+ ,a*b=a^b c)on Q,a*b=a-b D) On Z ,a*b=ab+1
Which are binary operations? E xplain who or why not . A) On the positive integers ,that is , Z^+,a*b=a/b B)On Z^+ ,a*b=a^b c)on Q,a*b=a-b D) On Z ,a*b=ab+1
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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5.Which are binary operations? E xplain who or why not .
A) On the positive integers ,that is , Z^+,a*b=a/b
B)On Z^+ ,a*b=a^b
c)on Q,a*b=a-b
D) On Z ,a*b=ab+1
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