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Byju's Answer
Standard XIII
Mathematics
Using Monotonicity to Find the Range of a Function
The range of ...
Question
The range of
s
i
n
−
1
x
−
c
o
s
−
1
x
is
A
[
−
3
π
2
,
π
2
]
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B
[
−
5
π
2
,
π
3
]
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C
[
−
3
π
2
,
π
]
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D
[
0
,
π
2
]
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Solution
The correct option is
A
[
−
3
π
2
,
π
2
]
s
i
n
−
1
−
c
o
s
−
1
x
=
π
2
−
c
o
s
−
1
x
−
c
o
s
−
1
x
=
π
2
−
2
c
o
s
−
1
x
0
≤
c
o
s
−
1
x
≤
π
⇒
0
≤
2
c
o
s
−
1
x
≤
2
π
⇒
−
2
π
≤
−
2
c
o
s
−
1
x
≤
0
⇒
−
3
π
2
≤
π
2
−
2
c
o
s
−
1
x
≤
π
2
∴
Range
=
[
−
3
π
2
,
π
2
]
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Standard XIII Mathematics
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