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Re: [OT] math fulgurationby duelafn (Parson) 
on Apr 07, 2021 at 12:22 UTC ( #11130947=note: print w/replies, xml )  Need Help?? 
Yes, as jo37 said, it is known, though they meant geometric series – the binomial formula would have binomial coefficients. Note: The wikipedia formula is a more general form and written a different way. Divide out the "a" then note that (1xⁿ)/(1x) = (xⁿ1)/(x1). Then solve for xⁿ. Good Day,
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