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If |cos^(-1) ((1-x^(2))/(1+x^(2)))| lt p...

If `|cos^(-1) ((1-x^(2))/(1+x^(2)))| lt pi/3`, then

A

`x in [-1/sqrt3, 1/sqrt3]`

B

` x in ( - 1/sqrt3, 1/sqrt3)`

C

` x in [0, 1/sqrt3]`

D

None of these

Text Solution

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The correct Answer is:
B
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