[数学排列组合] P&c 5s 困难的排列组合2
Synopsis
吉隆坡中华独立中学，高二理科，附数排列与组合，系列第十七集，讲解其他较为困难的排列组合题型。 电邮联络： ...
![[数学排列组合] P&C 5S 困难的排列组合1](https://i.ytimg.com/vi/N7WtFBU-n5w/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCOtWEtuZRF-gfxrfZtY4TKnlbcpA)
![[数学排列组合] P&C 5S 数字的排列2](https://i.ytimg.com/vi/3hvIwCM7lVg/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLD19eXcXmAyZwNJkn9YAzTk4uYtQQ)
![[数学排列组合] P&C 5S 基本组合2](https://i.ytimg.com/vi/oMsrELKxY5E/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDQRCTuoso5mz4DMS0UHmdMGSfb1Q)
![[数学排列组合] P&C 5S 环排列](https://i.ytimg.com/vi/rPmstlRxdiw/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDd2JlSC1jblrOEmtcYBRbQ1LM3TQ)
![[数学排列组合] P&C 5S 可重复选](https://i.ytimg.com/vi/eBDUR9i-Tg4/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLC-Jf1bUmrZUweNI-ZmAREmepwzcg)
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