WBJEE 2017 Math Solved Paper

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Question : 54 of 75

Marks: +1, -0

If f(x) =

x

∫

−1

‌|t|‌dt, then for any x ≥ 0, f(x) is equal to

1
2
‌(1−x2)
1−x2
1
2
‌(1+x2)
1+x2

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