JEE Mains Model Paper 7

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Question : 83 of 90

Marks: +1, -0

Let tan−1y = tan−1x + tan−1 (

2x

1−x2

) where |x| <

1

√3

. Then a value of y is

3x−x3
1+3x2
3x+x3
1+3x2
3x−x3
1−3x2
3x+x3
1−3x2

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