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Byju's Answer
Standard XII
Mathematics
One - One function
The number of...
Question
The number of injections possible from
A
=
{
1
,
3
,
5
,
6
}
to
B
=
{
2
,
8
,
11
}
is
A
8
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B
64
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C
2
12
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D
0
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Solution
The correct option is
C
0
co-domain
n
(
B
)
<
domain
n
(
A
)
There can't be any one-one function from
A
to
B
.
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0
Similar questions
Q.
The number of injections that are possible from
A
to itself is
720
,
then
n
(
A
)
=
Q.
If
n
(
A
)
=
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and
n
(
B
)
=
5
then the number of non-injective mappings possible from
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Q.
If |A|=|B|= 4,
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Q.
If |A|=|B|= 4,
then the number of injections from A to B is
Q.
Set
A
has
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B
has
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elements. The number of injections that can be defined from
A
to
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