Multinomial Expansion
Binomial Theorem of Class 11
Multinomial Expansion
If n ∈ N then the general term of the multinomial expansion
(x1 + x2 + ……..+xk)n is 
where a1 + a2 + ………….+ ak = n
and 0 ≤ ai ≤ n, i = 1, 2, …………k and the number of terms in the expansion
are n+k – 1Ck – 1.
