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Let g(x)=1+x-[x] [where [x] denote the g...

Let `g(x)=1+x-[x]` [where [x] denote the gratest integer not exceeding x] and `f(x)=sgn.x` [Where `f(x)= sgn. X=1` if `x gt 0,f (x) =0` if `x=0 and f(x) =-1` if` x lt 0]` then for all `x, f o g (x)` is equal to `lambda` .Find the value of `lambda`

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