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Let f:R-{0,1}rarr R\ be\ a function\ s...

` Let f:R-{0,1}rarr R\ be\ a function\ satis fy i ng\ the\ relation`,` f(x)+f((x-1)/(x))=x\ fo r\ all\ x\ in R-{0, 1}`.
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the following questions. f(x) is equal to

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