JEE Main 8 April 2017 Paper Solved Paper

Section: Mathematics

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Question : 89 of 90

Marks: +1, -0

The value of tan−1[

√1+x2+√1−x2

√1+x2−√1−x2

] ,∣x∣<

1

2

,x≠0,is equal to :

[Main 8 April 2017]

π
4
+
1
2
cosx2
π
4
+cos−1x2
π
4
−
1
2
cos−1x2
π
4
−cos−1x2

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