Jitender Singh
Last Activity: 10 Years ago
Ans:
Hello Student,
Please find answer to your question below
To easily find the coefficient of the binomial and multinomial expansion, you should follow the following points:
Sum of indices of x & a in the expansion (x+a)nequals the index of (x+a).
Number of terms are one more than the index of the expansion.
The binomial coefficient from the beginning and the end are equal.
(r+1)thterm from the first
nCrxn-rar
(k+1)thterm from the last
{(n+1)-(k+1)+1}thfrom the beginning