Question

write expansion of binomial theorem for positive integer​

Answer 1

Answer:

a+b is a binomial.

multiply a+b by itself using Polynomial Multiplication: (a+b)(a+b) = a2 + 2ab + b2.

Now take that result and multiply by a+b again: (a2 + 2ab + b2)(a+b) = a3 + 3a2b + 3ab2 + b3.

Answer 2

Answer:

For every positive integer

(a+b)^n = nCo a^n + nC1 a^n-1 b + nC2 a^n-2 b^2 +..................................................+nCn-1 a b^n-1 + nCn b^n