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Byju's Answer
Standard XI
Business Studies
MOA and AOA
For any two s...
Question
For any two sets A and B,
A
-
B
∪
B
-
A
=
(a)
A
-
B
∪
A
(b)
B
-
A
∪
B
(c)
A
∪
B
-
A
∩
B
(d)
A
∪
B
∩
A
∩
B
.
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Solution
(c)
A
∪
B
-
A
∩
B
A
-
B
∪
B
-
A
=
A
∩
B
'
∪
B
∩
A
'
=
A
∪
B
∩
A
'
∩
B
'
∪
B
∩
A
'
Using
distribution
law
=
A
∪
B
∩
A
∪
A
'
∩
B
'
∪
B
∩
B
'
∪
A
'
Using
distribution
law
=
A
∪
B
∩
U
∩
U
∩
B
'
∪
A
'
A
∪
A
'
=
U
=
B
'
∪
B
=
A
∪
B
∩
B
'
∪
A
'
A
∪
B
∩
U
=
A
∪
B
and
U
∩
B
'
∪
A
'
=
B
'
∪
A
'
=
A
∪
B
∩
A
∩
B
'
A
∩
B
'
=
B
'
∪
A
'
=
A
∪
B
∩
A
∪
B
-
A
∩
B
=
A
∪
B
-
A
∩
B
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0
Similar questions
Q.
The symmetric difference of A and B is
(a)
A
-
B
∩
B
-
A
(b)
A
-
B
∪
B
-
A
(c)
A
∪
B
-
A
∩
B
(d)
A
∪
B
-
A
∪
A
∪
B
-
B
Q.
For any three sets A, B and C
(a)
A
∩
B
-
C
=
A
∩
B
-
A
∩
C
(b)
A
∩
B
-
C
=
A
∩
B
-
C
(c)
A
∪
B
-
C
=
A
∪
B
∩
A
∪
C
'
(d)
A
∪
B
-
C
=
A
∪
B
-
A
∪
C
.
Q.
For any two sets
A
and
B
,
n
(
A
U
B
)
≥
n
(
A
)
+
n
(
B
)
where,
n
(
P
)
represents the number of elements in set
P
.
Q.
Is it true that for any sets A and
B
,
P
A
∪
P
B
=
P
A
∪
B
? Justify your answer.
Q.
For any two sets A and B,
{
(
A
∖
B
)
∪
(
B
∖
A
)
}
∩
(
A
∩
B
)
is:
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Standard XI Business Studies
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