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離散 4-40 範例1
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Mike Chen
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Mar 8, 2020, 9:30:04 AM
3/8/20
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to 黃子嘉 - 線代離散研究室
老師好 想請問一下這題
我的想法是:先把前面6格取兩格放q,u,然後最後一格放s或c,剩下隨便放
( C(6,2) * 2! ) * ( 7^4 ) * (2)
一直想不通是為甚麼多算
謝謝
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