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Byju's Answer
Standard VII
Mathematics
Finite and Infinite Set
If A=x/x i...
Question
If
A
=
{
x
/
x
is a natural number
}
, then
A
is an
A
Infinite set
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B
Finite set
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C
Singleton set
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D
Empty set
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Solution
The correct option is
A
Infinite set
A
is the set of natural numbers.
And there is infinite number of natural numbers. therefore
A
is an infinite set.
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0
Similar questions
Q.
If
A
=
{
x
:
x
<
5
,
x
is a natural number
}
and
B
=
{
x
:
−
1
<
x
<
5
,
x
is an integer
}
, then
A
and
B
are ___ sets.
Q.
Let
A
=
{
x
|
x
is a natural number
}
,
B
=
{
x
|
x
is a whole number
}
and
C
=
{
x
|
x
is an integer
}
. Then,
A
∪
C
equals
Q.
"If
x
is a member of set
S
, then
x
is not a member of set
T
," is logically equivalent to which of the following?
I. If
x
is a member of set
T
,
then
x
is not a member of set
S
.
II. If
x
is not a member of set
T
,
then
x
is a member of set
S
.
III. If
x
is not a member of set
S
,
then
x
is a member of set
T
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Q.
If A = {x : x is a composite number} and
B = {x : x is a prime number}, then clearly sets A and B are ________ sets.
Q.
If
A
=
{
x
,
y
}
, then the power set of
A
is
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