Niels Henrik Abel - Wikipedia
https://en.wikipedia.org/wiki/Niels_Henrik_AbelNiels Henrik Abel was a Norwegian mathematician who made pioneering contributions in a variety of fields. His most famous single result is the first complete proof demonstrating the impossibility of solving the general quintic equationin radicals. This question was one of the outstanding open problems of his day, and had been unresolved for over 250 years. He was also an innovato…
Binomial series - Wikipedia
en.wikipedia.org › wiki › Binomial_series1) and the binomial series is the power series on the right-hand side of (1), expressed in terms of the (generalized) binomial coefficients (α k):= α (α − 1) (α − 2) ⋯ (α − k + 1) k ! . {\displaystyle {\binom {\alpha }{k}}:={\frac {\alpha (\alpha -1)(\alpha -2)\cdots (\alpha -k+1)}{k!}}.} Contents 1 Special cases 2 Convergence 2.1 Conditions for convergence 2.2 Identities to be ...