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If sin^(-1) ((4x)/(x^(2) + 4)) + 2 tan^(...

If `sin^(-1) ((4x)/(x^(2) + 4)) + 2 tan^(-1) (-(x)/(2))` is independent of x, find the value of x

A

`-3 le x le 3`

B

`-2 le x le 2`

C

`-1 le x le 1`

D

`0 le x le 1`

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The correct Answer is:
B
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