展开 ((kn!))/((k(n+1))!)

解答

展开

\frac{( kn ! )}{( k ( n + 1 ) ) !}

\frac{kn !}{( kn + k ) !}

求解步骤

\frac{kn !}{( k ( n + 1 ) ) !}

乘开

k (n + 1) : kn + k

= \frac{kn !}{( kn + k ) !}

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