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If {{:(2+x",", x ge0),(4-x",", x lt 0):}...

If `{{:(2+x",", x ge0),(4-x",", x lt 0):},` a then `f (f(x))` is given by :

A

`(b - x^(1//3))/(a)`

B

`(ax^(2) + b)^(-3)`

C

`(ax^(2) + b)^(1//3)`

D

`((x ^(1//3) - b)/(a))^(1//2)`

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The correct Answer is:
A
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