Question

二项式定理公式的全英文表达是什么?

Answer 1

二项式定理：Binominal theorem

binominal theorem gives the expansion of powers of sums:

(x+y)^n=sigma(k=0,n) C(n,k)x^(n-k)y^k

whenever n is any non-negative interger,

the number c(n,k)=n!/(k!(n-k)!)

is the binomial coefficient(using the choose function),and n!denotes the factorial of n.