Question

£®±¾ÌâÓУ¨1£©¡¢£¨2£©¡¢£¨3£©Èý¸öÑ¡´ðÌ⣬ÿÌâ7·Ö£¬Ç뿼ÉúÈÎÑ¡2Ìâ×÷´ð£¬Âú·Ö14·Ö£®Èç¹û¶à×ö£¬Ôò°´Ëù×öµÄÇ°Á½Ìâ¼Ç·Ö£®×÷´ðʱ£¬ÏÈÓÃ2BǦ±ÊÔÚ´ðÌ⿨ÉÏ°ÑËùÑ¡ÌâÄ¿¶ÔÓ¦µÄÌâºÅÍ¿ºÚ£¬²¢½«ËùÑ¡ÌâºÅÌîÈëÀ¨ºÅÖУ®
(1)£¨Ñ¡ÐÞ4¡ª2 ¾ØÕóÓë±ä»»£©£¨±¾Ð¡ÌâÂú·Ö7·Ö£©
ÒÑÖª¾ØÕó£¬ÏòÁ¿£®
(¢ñ) Çó¾ØÕóµÄÌØÕ÷Öµ¡¢ºÍÌØÕ÷ÏòÁ¿¡¢£»
£¨¢ò£©ÇóµÄÖµ£®
(2)£¨Ñ¡ÐÞ4¡ª4 ²ÎÊý·½³ÌÓ뼫×ø±ê£©£¨±¾Ð¡ÌâÂú·Ö7·Ö£©
ÔÚ¼«×ø±êϵÖÐ,¹ýÇúÏßÍâµÄÒ»µã(ÆäÖÐΪÈñ½Ç)×÷ƽÐÐÓÚµÄÖ±ÏßÓëÇúÏß·Ö±ð½»ÓÚ£®
(¢ñ) д³öÇúÏߺÍÖ±ÏßµÄÆÕͨ·½³Ì(ÒÔ¼«µãΪԭµã,¼«ÖáΪÖáµÄÕý°ëÖὨϵ)£» 
£¨¢ò£©Èô³ÉµÈ±ÈÊýÁÐ,ÇóµÄÖµ£®
(3)£¨Ñ¡ÐÞ4¡ª5 ²»µÈʽ֤Ã÷Ñ¡½²£©£¨±¾Ð¡ÌâÂú·Ö7·Ö£©
ÒÑÖªÕýʵÊý¡¢¡¢Âú×ãÌõ¼þ£¬
(¢ñ) ÇóÖ¤£º£»
£¨¢ò£©Èô£¬ÇóµÄ×î´óÖµ£®

Answer 1

¢Å¾ØÕóÓë±ä»»
½â£º(¢ñ)¾ØÕóµÄÌØÕ÷¶àÏîʽΪ £¬
ÁµÃ,
µ±Ê±£¬µÃ,µ±Ê±£¬µÃ. ¡­¡­¡­¡­¡­¡­¡­¡­¡­3·Ö
£¨¢ò£©Óɵ㬵Ã.
¡à
.¡­¡­¡­¡­¡­¡­¡­¡­¡­7·Ö
¢Æ²ÎÊý·½³ÌÓ뼫×ø±ê
½â£º(¢ñ) ¡­¡­¡­¡­¡­¡­¡­¡­¡­3·Ö
£¨¢ò£©Ö±ÏߵIJÎÊý·½³ÌΪ(Ϊ²ÎÊý),´úÈëµÃµ½
,ÔòÓÐ
ÒòΪ,ËùÒÔ
½âµÃ ¡­¡­¡­¡­¡­¡­¡­¡­¡­7·Ö
¢Ç²»µÈʽ֤Ã÷Ñ¡½²
½â£º(¢ñ)ÓÉ¿ÂÎ÷²»µÈʽµÃ
´úÈëÒÑÖª    a+b+c=3
   
µ±ÇÒ½öµ±   a=b=c=1£¬È¡µÈºÅ¡£¡­¡­¡­¡­¡­¡­¡­¡­¡­3·Ö
£¨¢ò£©Óɵã¬Èô£¬Ôò£¬£¬
ËùÒÔ£¬£¬µ±ÇÒ½öµ±   a="b=" 1ʱ£¬ÓÐ×î´óÖµ1¡£¡­¡­¡­¡­¡­¡­¡­¡­¡­7·Ö

ÂÔ