I'm currently writing a proof that relates to continuity of a bizarre function and I ran across an interesting thought, at least to me. I don't really know what a radical √ is. For example, 6^3 is:(adsbygoogle = window.adsbygoogle || []).push({});

6*6*6

and x^n is:

x*x*x*x*x*x*x*x*x*x, n times, but what is a square root (ie. radical)? It's the opposite of a power, but I don't know how to define it!

Thanks!

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# What IS a radical?

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