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Byju's Answer
Standard XII
Mathematics
Union
What is A∪ϕ...
Question
What is
A
∪
ϕ
and
A
∩
ϕ
for a set
A
?
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Solution
A
∪
ϕ
=
A
A
∩
ϕ
=
ϕ
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0
Similar questions
Q.
Let
A
,
B
be two sets such that
A
∩
B
=
ϕ
, then
A
=
ϕ
and
B
=
ϕ
?
Q.
If A is any set, prove that:
A
⊆
ϕ
⇔
A
=
ϕ
.
Q.
The power set of
{
0
,
1
,
2
}
is_____.
Q.
How many elements are there in the power set of set
A
=
{{
ϕ
},
{
ϕ
,
{
ϕ
}}}
?
Q.
If
A
=
{
ϕ
,
{
(
ϕ
)
}
}
, then the power set
P
(
A
)
of
A
is
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