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Byju's Answer
Standard XII
Mathematics
Domain
For the given...
Question
For the given graph of
y
=
2
cot
(
x
+
π
/
4
)
;
y
∈
R
. Select the correct statements.
A
Domain:
R
−
(
4
n
−
1
)
π
/
2
;
n
∈
Z
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B
For
x
∈
[
−
π
,
3
π
]
,
y
=
0
at
x
=
−
3
π
/
4
,
π
/
4
,
5
π
/
4
,
9
π
/
4
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C
For
x
∈
[
−
π
,
3
π
]
,
y
=
0
at
x
=
−
3
π
/
2
,
π
/
2
,
5
π
/
4
,
9
π
/
4
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D
Domain:
R
−
(
4
n
−
1
)
π
/
4
;
n
∈
Z
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
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Solution
The correct option is
D
Domain:
R
−
(
4
n
−
1
)
π
/
4
;
n
∈
Z
Given the graph of
cot
x
Here,
cot
x
is not defined for
x
=
−
π
/
4
,
3
π
/
4
,
7
π
/
4
.
.
.
Or Domain(D):
R
−
(
4
n
−
1
)
π
/
4
Also, For
x
∈
[
−
π
,
3
π
]
,
y
=
0
at points:
x
=
−
3
π
/
4
,
π
/
4
,
5
π
/
4
,
9
π
/
4
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0
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