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The domain of the function f(x)=1/(sqrt(...

The domain of the function `f(x)=1/(sqrt([x]^2-2[x]-8))` is, where [*] denotes greatest integer function

A

`(-2, 5]`

B

`(-2, 5)`

C

`(-oo, -2), uu(5, oo)`

D

none of these

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The correct Answer is:
C
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