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Byju's Answer
Standard XII
Mathematics
Difference of Two Sets
If universal ...
Question
If universal set
ξ
=
{
a
,
b
,
c
,
d
,
e
,
f
,
g
,
h
}
,
A
=
{
b
,
c
,
d
,
e
,
f
}
,
B
=
{
a
,
b
,
c
,
g
,
h
}
and
C
=
{
c
,
d
,
e
,
f
,
g
}
find
(
B
−
C
)
′
A
{
d
,
e
,
f
,
g
}
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B
{
c
,
d
,
e
,
f
,
g
}
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C
{
c
,
d
,
f
,
g
}
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D
{
a
,
c
,
d
,
e
,
f
,
g
}
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Solution
The correct option is
C
{
c
,
d
,
e
,
f
,
g
}
Given :
ξ
=
{
a
,
b
,
c
,
d
,
e
,
f
,
g
,
h
}
,
A
=
{
b
,
c
,
d
,
e
,
f
}
,
B
=
{
a
,
b
,
c
,
g
,
h
}
and
C
=
{
c
,
d
,
e
,
f
,
g
}
B
−
C
will have elements of
B
which are not in
C
So,
B
−
C
=
{
a
,
b
,
h
}
And
(
B
−
C
)
′
=
ξ
−
(
B
−
C
)
=
{
c
,
d
,
e
,
f
,
g
}
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0
Similar questions
Q.
If universal set
ξ
=
{
a
,
b
,
c
,
d
,
e
,
f
,
g
,
h
}
,
A
=
{
b
,
c
,
d
,
e
,
f
}
,
B
=
{
a
,
b
,
c
,
g
,
h
}
and
C
=
{
c
,
d
,
e
,
f
,
g
}
, then find
B
−
A
Q.
If
ξ
= {
a
,
b
,
c
,
d
,
e
,
f
,
g
,
h
},
A
=
{
b
,
c
,
d
,
e
,
f
},
B
=
{
a
,
b
,
c
,
g
,
h
} and
C
=
{
c
,
d
,
e
,
f
,
g
} ,
then find
C
′
−
B
′
.
Q.
If a:b = c:d, and e:f = g:h, then (ae+bf):(ae-bf)=?
Q.
If universal set
ξ
=
{
a
,
b
,
c
,
d
,
e
,
f
,
g
,
h
}
,
A
=
{
b
,
c
,
d
,
e
,
f
}
,
B
=
{
a
,
b
,
c
,
g
,
h
}
and
C
=
{
c
,
d
,
e
,
f
,
g
}
find :
C
−
(
B
∩
A
)
Thus find the number of elements in the above set.
Q.
If
ξ
= {
a
,
b
,
c
,
d
,
e
,
f
,
g
,
h
},
A
=
{
b
,
c
,
d
,
e
,
f
},
B
=
{
a
,
b
,
c
,
g
,
h
} and
C
=
{
c
,
d
,
e
,
f
,
g
},
then
(B - C)
′
= C
′
- B
′
is,
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