Derive an identity for nck via inclusion-exclusion

Reference no: EM13185522

Derive an identity for nCk via inclusion-exclusion by counting the k-multisets of [n] in which each element of [n] appears at most once. use p_i = "element i appears more than once in the multiset" as the i-th property, for 1<=i<=n

Reference no: EM13185522

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