If f(x)=(25-x^(4))^(1//4) for 0 lt x lt ...

If `f(x)=(25-x^(4))^(1//4)` for `0 lt x lt sqrt5` then `f(f((1)/(2)))=`

A

`2^(-4)`

B

`2^(-3)`

C

`2^(-2)`

D

`2^(-1)`

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The correct Answer is:

D

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