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No Plagiarism!tzXI3bgvq75tKEXFoKIZposted on PENANA 今天看到我的湘湘姊姊苦惱一題數學題,我當然要把它做出來才行。8964 copyright protection479PENANAL7yYzS2OPC 維尼
題目是:「庭院深深深幾許,三深不能排一起」有幾種排列方式。8964 copyright protection479PENANAcedl3R9e6f 維尼
483Please respect copyright.PENANAiSEft7pTDq
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這題看似複雜其實就兩個思緒而已,扣除法和安插法。8964 copyright protection479PENANAjHE7XKs3v8 維尼
483Please respect copyright.PENANAfxKJFw0p88
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扣除法:算出全部可能後扣除三深的情況。8964 copyright protection479PENANAEnLAPFn8zN 維尼
安插法:將三個深分別安插,再將兩深併攏一深獨立後安插。8964 copyright protection479PENANAOHtiq8UyxB 維尼
483Please respect copyright.PENANA58PnGxHJwb
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提示到這邊,留言看看誰算對了!8964 copyright protection479PENANAf23j1pWb4k 維尼
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