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Byju's Answer
Standard XII
Mathematics
Composition of Trigonometric Functions and Inverse Trigonometric Functions
Given the gra...
Question
Given the graph of
y
=
cot
2
x
;
y
∈
R
.
Then select the correct statement:
A
Period:
π
/
2
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B
Period:
π
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C
Domain:
R
−
n
π
;
n
∈
Z
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D
Domain:
R
−
n
π
/
2
;
n
∈
Z
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Solution
The correct option is
D
Domain:
R
−
n
π
/
2
;
n
∈
Z
From the given graph of
cot
2
x
:
We can observe
cot
2
x
is not defined for angles
x
=
−
π
/
2
,
0
,
π
/
2
,
π
,
3
π
/
2
∴
Domain of
cot
2
x
is:
D
:
R
−
n
π
/
2
,
∀
n
∈
Z
Also, for period we can can see the function value getting repated after every
π
/
2
interval.
Hence, Period of
cot
2
x
=
π
/
2.
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