ÌâÄ¿ÄÚÈÝ
(15 ·Ö)ijÐËȤС×éÉè¼ÆÁËÒ»ÖÖ·¢µç×°ÖÃ,ÈçͼËùʾ. Ôڴż«ºÍÔ²Öù×´Ìúо֮¼äÐγɵÄÁ½´Å³¡ÇøÓòµÄÔ²ÐĽǾùΪ
,´Å³¡¾ùÑذ뾶·½Ïò. ÔÑÊýΪN µÄ¾ØÐÎÏßȦabcd µÄ±ß³¤ab ="cd" =
¡¢bc ="ad" =2
. ÏßȦÒÔ½ÇËٶȦØÈÆÖÐÐÄÖáÔÈËÙת¶¯,bcºÍad ±ßͬʱ½øÈë´Å³¡. Ôڴų¡ÖÐ,Á½Ìõ±ßËù¾¹ý´¦µÄ´Å¸ÐӦǿ¶È´óС¾ùΪB¡¢·½ÏòʼÖÕÓëÁ½±ßµÄÔ˶¯·½Ïò´¹Ö±. ÏßȦµÄ×ܵç×èΪr,Íâ½Óµç×èΪR. Çó:
(1)ÏßȦÇиî´Å¸ÐÏßʱ,¸ÐÓ¦µç¶¯ÊƵĴóСEm;
(2)ÏßȦÇиî´Å¸ÐÏßʱ,bc ±ßËùÊÜ°²ÅàÁ¦µÄ´óСF;
(3)Íâ½Óµç×èÉϵçÁ÷µÄÓÐЧֵI.
(1) (2)
(3)
½âÎö
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿