JEE Main 10 April 2016 Paper

Section: Mathematics

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Question : 72 of 90

Marks: +1, -0

Let f(x)=sin4x+cos4x. Then f is an increasing function in the interval :

[Main 10 Apr 2016]

]0,
π
2
[
]
π
4
,
π
2
[
]
π
2
,
5π
8
[
]
5π
8
,
3π
4
[

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