Question

£¨2013·±±¾©³¯Ñô¶þÄ££¬24Ì⣩£¨20·Ö£©

ÈçͼËùʾ£¬ÔÚxOy×ø±êϵÖУ¬µÚÒ»ÏóÏÞ´æÔÚÒ»ÓëxOyƽÃæƽÐеÄÔÈÇ¿µç³¡£¬ÔÚµÚ¶þÏóÏÞ´æÔÚ´¹Ö±ÓÚÖ½ÃæµÄÔÈÇ¿´Å³¡¡£ÔÚyÖáÉϵÄPµãÓÐÒ»¾²Ö¹µÄ´øÕýµçµÄÁ£×Ó£¬Ä³Ê±¿Ì£¬Á£×ÓÔںܶÌʱ¼äÄÚ£¨¿ÉºöÂÔ²»¼Æ£©·ÖÁѳÉÈý¸ö´øÕýµçµÄÁ£×Ó1¡¢2ºÍ3£¬ËüÃÇËù´øµÄµçºÉÁ¿·Ö±ðΪq1¡¢q2ºÍq3£¬ÖÊÁ¿·Ö±ðΪm1¡¢m2ºÍm3£¬ÇÒ£¬¡£´øµçÁ£×Ó1ºÍ2ÑØxÖḺ·½Ïò½øÈ˴ų¡ÇøÓò£¬´øµçÁ£×Ó3ÑØxÖáÕý·½Ïò½øÈëµç³¡ÇøÓò¡£¾­¹ýÒ»¶Îʱ¼äÈý¸ö´øµçÁ£×ÓͬʱÉä³ö³¡Çø£¬ÆäÖÐÁ£×Ó1¡¢3Éä³ö³¡ÇøµÄ·½Ïò´¹Ö±ÓÚxÖᣬÁ£×Ó2Éä³ö³¡ÇøµÄ·½ÏòÓëxÖḺ·½ÏòµÄ¼Ð½ÇΪ60¡ã¡£ºöÂÔÖØÁ¦ºÍÁ£×Ó¼äµÄÏ໥×÷Óá£Çó£º

£¨1£©Èý¸öÁ£×ÓµÄÖÊÁ¿Ö®±È£»

£¨2£©Èý¸öÁ£×Ó½øÈ볡ÇøʱµÄËٶȴóС֮±È£»

£¨3£©Èý¸öÁ£×ÓÉä³ö³¡ÇøʱÔÚxÖáÉϵÄλÒÆ´óС֮±È¡£

Answer 1

¡¾´ð°¸¡¿¼û½âÎö

¡¾½âÎö¡¿£¨1£©ÉèÁ£×Ó1¡¢2Ôڴų¡ÖÐ×öÔÈËÙÔ²ÖÜÔ˶¯µÄÖÜÆÚ·Ö±ðΪT1ºÍT2¡£ÔòÓÐ

                                   £¬

                     ÓÉÌâÒâ¿ÉÖª£º

                     ËùÒÔ      

                     ÓÖÒòΪ   

                     ËùÒÔ       ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­£¨6·Ö£©

   £¨2£©ÉèÁ£×Ó1¡¢2Ôڴų¡ÖÐ×öÔÈËÙÔ²ÖÜÔ˶¯µÄ°ë¾¶·Ö±ðΪr1ºÍr2¡£ÔòÓÐ

                                  

                                  

                     Óɼ¸ºÎ¹Øϵ¿ÉÖª£º

                     ËùÒÔ      

                     ÔÚÁ£×Ó·ÖÁѵĹý³ÌÖУ¬¶¯Á¿Êغ㣬Ôò

                                  

                     ËùÒÔ       ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­£¨7·Ö£©

   £¨3£©Èý¸öÁ£×ÓÉä³ö³¡ÇøʱÔÚxÖáÉϵÄλÒÆ·Ö±ðΪx1¡¢x2ºÍx3¡£Óɼ¸ºÎ¹Øϵ¿ÉÖª£º

                                   £¬

                     Á£×Ó3Ôڵ糡ÖÐÔ˶¯Ê±£¬ÑØxÖá·½ÏòµÄ·ÖÔ˶¯ÊÇ£º³õËÙ¶ÈΪv3µÄÔȼõËÙÔ˶¯£¬Ä©

ËÙ¶ÈΪ0¡£ÉèÔ˶¯Ê±¼äΪt£¬ÔòÓÐ

                                  

                     ËùÒÔ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­£¨7·Ö£©