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Byju's Answer
Standard XII
Mathematics
Union
Let A , B b...
Question
Let
A
,
B
be two set such that
n
(
A
)
=
4
and
n
(
B
)
=
6
then the least possible number of elements in the power set of
(
A
∪
B
)
is
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Solution
L
e
t
A
=
{
1
,
2
,
3
,
4
}
B
=
{
1
,
2
,
3
,
4
,
5
,
6
}
N
o
w
,
A
∪
B
=
{
1
,
2
,
3
,
4
,
5
,
6
}
H
e
n
c
e
,
l
e
a
s
t
p
o
s
s
i
b
l
e
n
u
m
b
e
r
o
f
e
l
e
m
e
n
t
i
s
4.
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Similar questions
Q.
Let A,B are two sets such that n(A)=4 and n(B)=6. Then the least possible number of elements in the power set of
(
A
∪
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is
Q.
If A and B are two finite sets such that n(A) > n(B) and the difference of the number of elements of the power sets of A and B is 96, then n(A) – n(B) = ____________.
Q.
Let
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B
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A
∪
B
)
is _________
Q.
Let
X
be a set containing
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elements and
P
(
X
)
be its power set. The sets
A
and
B
are picked from
P
(
X
)
.
If
n
(
A
)
=
n
(
B
)
and
A
≠
B
,
then total number of ordered pair
(
A
,
B
)
is
[Note
:
n
(
A
)
represents number of elements in set
A
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Let
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are two finite sets such that
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A
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=
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then the number of elements in
A
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