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Small Steps

Two problems about infinite processes where smaller and smaller steps are taken and you have to discover what happens in the limit.

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Stage: 5 Challenge Level: Challenge Level:2 Challenge Level:2

If the integer part of $x$ is $a$ then $x=a + b$ where $a$ is a whole number and $0\leq b < 1$.

Try some numerical values of $x$, evaluate the three functions and record the results. What do you notice? Can you prove that different values of $x$ will produce similar findings?