In how many ways can n identical balls be distributed into r urns so that the ith

Question:

In how many ways can n identical balls be distributed into r urns so that the ith urn contains at least mi balls, for each i = 1, . . ., r? Assume that
n- ΣΕ1m. =D1
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: