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The value of f(0) so that the ...

The value of `f(0)` so that the function `f(x) = (2x - sin^(-1)x)/(2x + tan^(-1)x)` is continuous at each point on its domain is:

A

`(1)/(3)`

B

`-(1)/(3)`

C

`(2)/(3)`

D

`-(2)/(3)`

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The correct Answer is:
a
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