解ï¼
ï¼1ï¼åå¨ä¸èµ·ï¼å
±æ8ç§ï¼æ¯ä¸ç§é½æA(3,3)ç§
æ以ï¼å
±æ8*A(3,3)=8*6=48
ï¼2ï¼è¿ä¸ªé¢ç®ææ§ä¹
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åçåä¸ä¸åï¼åªæä¸ç±»
å
±æ 1*A(3,3)=6
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åæ10ç§ä¸åç±»ï¼æ¯ä¸ç±»é½æAï¼3,3ï¼ç§ï¼
å
±æ 10*A(3,3)=10*6=60ç§
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