Let \( g(x)=1+x-[x] \) and \( f(x)=\left\{\begin{array}{cl}-1, & x0...

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Let \( g(x)=1+x-[x] \) and \( f(x)=\left\{\begin{array}{cl}-1, & x0 \\ 0, & x=0 \\ 1, & x0\end{array}\right. \), then for all
\( \mathrm{P} \) \( x, f[g(x)] \) is equal to
(2001, 1M)
VV
(a) \( x \)
(b) 1
(c) \( f(x) \)
(d) \( g(x) \)
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