15. the operation * is defined on the set r
a
+b
– 1 for
of real numbers by...
Mathematics, 19.10.2019 20:10 denjayjr681
15. the operation * is defined on the set r
a
+b
– 1 for
of real numbers by a*b =
all a, ber.
(a) is r closed under* ?
(b) is the operation * commutative
in r?
(c) is the operation * associative in
r?
Answers: 2
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