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(1)不選0 C(5,3)×C(4,3)×A(6,6)=28800個 (2)選0 C(5,3)×C(4,2)×C(5,1)×A(5,5)=36000個 一共可以組成沒有重複數位的六位數:28800+36000=64800個
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