ÌâÄ¿ÄÚÈÝ
£¨10·Ö£©ÈçͼËùʾ£¬Èý¸ö¿ÉÊÓΪÖʵãµÄ»¬¿éÖÊÁ¿·Ö±ðΪmA=m£¬mB=2m£¬mC=3m£¬·ÅÔڹ⻬ˮƽÃæÉÏ£¬Èý»¬¿é¾ùÔÚͬһֱÏßÉÏ£®Ò»ÇáÖʵ¯»ÉµÄÒ»¶Ë¹Ì¶¨ÔÚ»¬¿éBÉÏ£¬ÁíÒ»¶ËÓ뻬¿éC½Ó´¥µ«Î´Á¬½Ó£¬B¡¢C¾ù¾²Ö¹¡£ÏÖ»¬¿éAÒÔËÙ¶Èv0=
Ó뻬¿éB·¢ÉúÅöײ£¨Åöײʱ¼ä¼«¶Ì£©ºóÕ³ÔÚÒ»Æ𣬲¢Ñ¹Ëõµ¯»ÉÍƶ¯»¬¿éCÏòÇ°Ô˶¯£¬¾Ò»¶Îʱ¼ä£¬»¬¿éCÍÑÀ뵯»É£¬¼ÌÐøÔÚˮƽÃæÉÏÔÈËÙÔ˶¯£¬Çó£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040176272212.jpg)
¢Ù±»Ñ¹Ëõµ¯»ÉµÄ×î´óµ¯ÐÔÊÆÄÜ
¢Ú»¬¿éCÍÑÀ뵯»ÉºóA¡¢B¡¢CÈýÕßµÄËÙ¶È
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017596486.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040176272212.jpg)
¢Ù±»Ñ¹Ëõµ¯»ÉµÄ×î´óµ¯ÐÔÊÆÄÜ
¢Ú»¬¿éCÍÑÀ뵯»ÉºóA¡¢B¡¢CÈýÕßµÄËÙ¶È
¢Ù
¢Ú
/3
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017643874.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017596486.png)
ÊÔÌâ·ÖÎö£º£¨2£©£¨10·Ö£©¢ÙAÓëBÅöײºóµÄËÙ¶ÈΪV1£¬Óɶ¯Á¿Êغã
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017674806.png)
µÃ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017690877.png)
ABÓëCÒ»ÆðѹËõµ¯»É¹ý³ÌÖУ¬¶¯Á¿Êغ㣬»úеÄÜÊغ㣬µ¯ÐÔÊÆÄÜ×î´óʱ£¬Èý»¬¿é¹²ËÙv2
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017705899.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017721912.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040177371514.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017643874.png)
¢Úµ¯»ÉÔٴλָ´×ÔÈ»³¤¶Èʱ£¬»¬¿éCÍÑÀ뵯»É¡£ABËÙ¶ÈΪv3£¬CËÙ¶ÈΪv4£¬Óɶ¯Á¿¶¨ºãºÍ»úеÄÜÊغã
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040177681033.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040177991290.png)
µÃ£ºv3=0£¨1·Ö£©
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004017815841.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿