Mathematics, 27.11.2019 20:31 OkK1510

We will prove the following identity involving the multinomial coefficient: n n1 n âˆ’ n1 n2 n âˆ’ n1 âˆ’ n2 n3 . . n âˆ’ pdâˆ’1 i=1 ni nd = n! n1! n2! n3! . nd! recall that pd i=1 ni = n. (a) prove this identity algebraically. (b) prove this identity using a combinatorial argument.

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We will prove the following identity involving the multinomial coefficient: n n1 n âˆ’ n1 n2 n âˆ’...

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