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CBSE XII
>>
Math
>>
Relations and Functions
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Q)
Let f : N
→
Y be a function defined as
f
(
x
)
=
4
x
+
3
f
(
x
)
=
4
x
+
3
where
Y
=
{
y
∈
N
;
y
=
4
x
+
3
Y
=
{
y
∈
N
;
y
=
4
x
+
3
for some
x
∈
N
}
x
∈
N
}
. If 'f' is invertible.
(
A
)
I
n
v
e
r
t
i
b
l
e
(
B
)
N
o
n
−
i
n
v
e
r
t
i
b
l
e
(
C
)
C
a
n
n
o
t
b
e
d
e
t
e
r
m
i
n
e
d
Share
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