Question

1. Write the characteristics of binomial expansion.
2.)10 schools participate in a science fair. In how many ways can the first, second and the third prizes
be distributed among these schools ? according to permutation ​

Answer 1

Answer:

Properties for the binomial expansion include: the number of terms is one more than n (the exponent ), and the sum of the exponents in each term adds up to n . Applying (nr−1)an−(r−1)br−1 ( n r − 1 ) a n − ( r − 1 ) b r − 1 and (nk)=n! (n−k)!k!