Let \( g(x)=1+x-[x] \) and \( f(x)=\left\{\begin{array}{l}-1, \text { If } x<0 \\ 0, \text { ...

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Let \( g(x)=1+x-[x] \) and \( f(x)=\left\{\begin{array}{l}-1, \text { If } x<0 \\ 0, \text { If } x=0 \text {, then } \\ 1, \text { if } x>0\end{array}\right. \) for all values of \( x \) the value of fog \( (x) \)
(1) \( x \)
(2) 1
(3) \( f(x) \)
(4) \( g(x) \)
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