Question

Prove the formula of binomia theorem.

Answer 1

Answer:

Proof of the binomial theorem by mathematical induction. (nr−1)+(nr)=(n+1r),for0<r≤n. (a+b)n=an+(n1)an−1b+(n2)an−2b2+⋯+(nr)an−rbr+⋯+(nn−1)abn−1+>bn. We first note that the result is true for n=1 and n=2.