(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Use the fact that every real number has a decimal expansion to produce a 1-1 function that maps S into (0,1). Discuss whether the formulated function is onto.

2. Relevant equations

S={(0,1):0<x, y<1}

3. The attempt at a solution

I don't even know where to begin. The whole decimal expansion business has me confused.

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# Homework Help: Decimal Expansion, 1-1 onto

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