Binomial theorem
From specialfunctionswiki
Theorem
The following formula holds: $$(a+b)^n = \displaystyle\sum_{k=0}^n {n \choose k} a^k b^{n-k},$$ where $\displaystyle{n \choose k}$ denotes the binomial coefficient
Proof
References
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of mathematical functions ... (next): 3.1.1
