Tardigrade
Tardigrade - CET NEET JEE Exam App
Exams
Login
Signup
Tardigrade
Question
Mathematics
If A = x: x2 - 3x + 2 = 0 , and R is a universal relation on A, then R is
Q. If
A
=
{
x
:
x
2
−
3
x
+
2
=
0
}
, and R is a universal relation on A, then R is
1804
220
Relations and Functions - Part 2
Report Error
A
{(
1
,
1
)
,
(
2
,
2
)}
12%
B
{(
1
,
1
)}
12%
C
{
ϕ
}
15%
D
{(
1
,
1
)
,
(
1
,
2
)
,
(
2
,
1
)
,
(
2
,
2
)}
61%
Solution:
A
=
{
1
,
2
}
, as R is universal relation so,
R
=
A
×
A
R =
{(
1
,
1
)
,
(
1
,
2
)
,
(
2
,
1
)
,
(
2
,
2
)}