Let f:R→R be a continuous function. Let {xn}∞n=1 be a convergent sequence in R with limn→∞xn=x and f(x)≠0
I want to show that {1f(xn)} converges to 1f(x).
Now It would seem I have:
|f(xn)−f(x)|<ϵ
|f(xn)−f(x)|≤|f(xn)|−|f(x)|
and now I don't get it, I would expect to get some relationship also less than epsilon, times by −1 to inverse the epsilon inequality and then find a way to get the ricipricals and that would reverse the epsilon inequality again giving me the result, but I can't see it.
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