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Question
Mathematics
If A = a,b,c then the number of binary operations on A is
Q. If
A
=
{
a
,
b
,
c
}
, then the number of binary operations on
A
is
7750
219
KCET
KCET 2020
Relations and Functions - Part 2
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A
3
10%
B
3
6
21%
C
3
3
34%
D
3
9
34%
Solution:
A
=
{
a
,
b
,
c
}
n
(
A
)
=
3
Number of binary operations is
n
(
A
)
(
n
(
A
)
)
2
=
3
(
3
2
)
=
3
9