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Subjects
Mathematics State Board
Class 9
Set Language
Properties of Set Operations
9.
Find using commutative property
Exercise condition:
4
m.
If
X
=
\{
y
:
y
=
5
n
,
n \in \mathbb{N}
and
n \le 3\}
,
Y
=
\{
y
:
y
=
5
n
,
n \in \mathbb{N}
and
n \le 3\}
, then find the following.
(i)
Commutative property of intersection of sets
:
X
\cup
Y
=
Y
\cup
X
X
\cup
(
Y
\cap
=
(
X
\cup
Y
)
\cap
X
\cap
Y
=
Y
\cap
X
X
\cap
(
Y
\cup
)
=
(
X
\cap
Y
)
\cup
(ii)
Y
\cap
X
=
\{
5
,
10
,
15
,
25
\}
\{
5
,
25
,
125
\}
\{5\}
\{
5
,
10
,
15
,
25
,
125
\}
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