ÌâÄ¿ÄÚÈÝ
ÔÚÆ½ÃæÖ±½Ç×ø±êϵÖУ¬¶þ´Îº¯Êý
µÄͼÏóÓë
Öá½»ÓÚA£¨£3£¬0£©£¬B£¨1£¬0£©Á½µã£¬ÓëyÖá½»ÓÚµãC£®

£¨1£©ÇóÕâ¸ö¶þ´Îº¯ÊýµÄ½âÎöʽ£»
£¨2£©µãPÊÇÖ±ÏßACÉÏ·½µÄÅ×ÎïÏßÉÏÒ»¶¯µã£¬ÊÇ·ñ´æÔÚµãP£¬Ê¹¡÷ACPµÄÃæ»ý×î´ó£¿Èô´æÔÚ£¬Çó³öµãPµÄ×ø±ê£»Èô²»´æÔÚ£¬ËµÃ÷ÀíÓÉ£»
£¨3£©µãQÊÇÖ±ÏßACÉÏ·½µÄÅ×ÎïÏßÉÏÒ»¶¯µã£¬¹ýµãQ×÷QE´¹Ö±ÓÚ
Öᣬ´¹×ãΪE£®ÊÇ·ñ´æÔÚµãQ£¬Ê¹ÒÔµãB¡¢Q¡¢EΪ¶¥µãµÄÈý½ÇÐÎÓë¡÷AOCÏàËÆ£¿Èô´æÔÚ£¬Ö±½Óд³öµãQµÄ×ø±ê£»Èô²»´æÔÚ£¬ËµÃ÷ÀíÓÉ£»
£¨1£©ÇóÕâ¸ö¶þ´Îº¯ÊýµÄ½âÎöʽ£»
£¨2£©µãPÊÇÖ±ÏßACÉÏ·½µÄÅ×ÎïÏßÉÏÒ»¶¯µã£¬ÊÇ·ñ´æÔÚµãP£¬Ê¹¡÷ACPµÄÃæ»ý×î´ó£¿Èô´æÔÚ£¬Çó³öµãPµÄ×ø±ê£»Èô²»´æÔÚ£¬ËµÃ÷ÀíÓÉ£»
£¨3£©µãQÊÇÖ±ÏßACÉÏ·½µÄÅ×ÎïÏßÉÏÒ»¶¯µã£¬¹ýµãQ×÷QE´¹Ö±ÓÚ
£¨1£©
£¨2£©´æÔÚµã
£¬Ê¹¡÷ACPµÄÃæ»ý×î´ó
£¨3£©´æÔÚµãQ£¬×ø±êΪ£º
£¬
£¨2£©´æÔÚµã
£¨3£©´æÔÚµãQ£¬×ø±êΪ£º
ÊÔÌâ·ÖÎö£º26£®½â£º£¨1£©ÓÉÅ×ÎïÏß
Ôò
½âµÃ
¡à¶þ´Îº¯ÊýµÄ¹ØÏµ½âÎöʽ
£¨2£©Á¬½ÓPO£¬×÷PM¡ÍxÖáÓÚM£¬PN¡ÍyÖáÓÚN£®¡4·Ö
ÉèµãP×ø±êΪ£¨m£¬n£©£¬Ôò
PM =
µ±
¡àOC=2£®¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡6·Ö
£½
¡ß
´Ëʱ
¡à´æÔÚµã
£¨3£©´æÔÚµãQ£¬×ø±êΪ£º
·Ö¡÷BQE¡×¡÷AOC£¬¡÷EBQ¡×¡÷AOC£¬¡÷QEB¡×¡÷AOCÈýÖÖÇé¿öÌÖÂۿɵóö£®
µãÆÀ£º´ËÌâÄѶȱȽÏÊÊÖУ¬°Ñ¶þ´Îº¯ÊýµÄÐÔÖÊÓëͼÐεÄÃæ»ýµÄÇó·¨ÏàËÆ½áºÏ£¬´ËÌâÊÇÇø±ðѧÉú³Ì¶ÈµÄÌâÄ¿£¬³É¼¨½ÏºÃѧÉú¿ÉÒÔÔÚÆ½Ê±Á·Ï°ÖмÓÇ¿¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿