ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿ÈçͼËùʾ£¬ÔÚ¿Õ¼ä×ø±êϵ x<0ÇøÓòÖÐÓÐÊúÖ±ÏòÉϵÄÔÈÇ¿µç³¡E1£¬ÔÚÒ»¡¢ËÄÏóÏÞµÄÕý·½ÐÎÇøÓòCDEFÄÚÓз½ÏòÈçͼËùʾµÄÕý½»µÄÔÈÇ¿µç³¡E2ºÍÔÈÇ¿´Å³¡B£¬ÒÑÖªCD=2L£¬OC=L£¬E2 =4E1¡£ÔÚ¸ºxÖáÉÏÓÐÒ»ÖÊÁ¿Îªm¡¢µçÁ¿Îª+qµÄ½ðÊôaÇòÒÔËÙ¶ÈV0ÑØxÖáÏòÓÒÔÈËÙÔ˶¯£¬²¢Óë¾²Ö¹ÔÚ×ø±êÔ­µãO´¦ÓþøԵϸ֧ÖùÖ§³ÅµÄ£¨Ö§ÖùÓëbÇò²»Õ³Á¬¡¢ÎÞĦ²Á£©ÖÊÁ¿Îª2m¡¢²»´øµç½ðÊôbÇò·¢Éúµ¯ÐÔÅöײ¡£ÒÑÖªa¡¢b ÇòÌå»ý´óС¡¢²ÄÁÏÏàͬÇÒ¶¼¿ÉÊÓΪµãµçºÉ£¬ÅöºóµçºÉ×ÜÁ¿¾ù·Ö£¬ÖØÁ¦¼ÓËÙ¶ÈΪg£¬²»¼Æa¡¢bÇò¼äµÄ¾²µçÁ¦£¬²»¼Æa¡¢bÇò²úÉúµÄ³¡¶Ôµç³¡¡¢´Å³¡µÄÓ°Ï죬Çó£º

£¨1£©Åöײºó£¬a¡¢bÇòµÄËٶȴóС£»

£¨2£©a¡¢bÅöºó£¬¾­Ê±aÇòµ½Ä³Î»ÖÃPµã£¬ÇóPµãµÄλÖÃ×ø±ê£»

£¨3£©a¡¢bÅöºó£¬ÒªÊ¹ bÇò²»´ÓCD±ß½çÉä³ö£¬Çó´Å¸ÐӦǿ¶ÈBµÄÈ¡Öµ¡£

¡¾´ð°¸¡¿£¨1£© £¨2£© £¨3£©

¡¾½âÎö¡¿

£¨1£©a¡¢bÅöײ£¬Óɶ¯Á¿ÊغãºÍÄÜÁ¿Êغã¹ØϵÇó½âÅöºóa¡¢bµÄËٶȣ»£¨2£©ÅöºóaÔڵ糡ÖÐÏò×ó×öÀàƽÅ×Ô˶¯£¬¸ù¾ÝƽÅ×Ô˶¯µÄ¹æÂÉÇó½âPµãµÄλÖÃ×ø±ê£»£¨3£©ÒªÊ¹ bÇò²»´ÓCD±ß½çÉä³ö£¬Çó½âÇ¡ÄÜ´ÓCµãºÍDµãÉä³öµÄÁÙ½çÌõ¼þÈ·¶¨´Å¸ÐӦǿ¶ÈµÄ·¶Î§.

£¨1£©aÔÈËÙ£¬Ôò£º ¢Ù

abÅöײ£¬¶¯Á¿Êغ㣺 ¢Ú

»úеÄÜÊغ㣺 ¢Û

Óɢڢ۵à ¢Ü

£¨2£©Åöºóa¡¢bµçÁ¿×ÜÁ¿Æ½·Ö£¬Ôò

ÅöºóaÔڵ糡ÖÐÏò×ó×öÀàƽÅ×Ô˶¯£¬É辭ʱaÇòµ½PµãµÄλÖÃ×ø±êΪ£¨x£¬y£©

¢Ý ¢Þ

ÆäÖÐ ¢ß,

Óɢݢޢߵà £¬

¹ÊPµãµÄλÖÃ×ø±êΪ£¨- £¬- £©¢à

£¨3£©Åöײºó¶Ôb: ¢á

¹Êb×öÔÈËÙÔ²ÖÜÔ˶¯£¬Ôò£º ¢âµÃ

bÇ¡ºÃ´ÓCÉä³ö,Ôò£º

Óɵãº

Ç¡´ÓDÉä³ö£¬ÔòÓɼ¸ºÎ¹Øϵ£º £¬

µÃ

×ÛÉÏ£¬

¹ÊҪʹb²»´ÓCD±ß½çÉä³ö£¬ÔòBµÄÈ¡Öµ·¶Î§Âú×㣺

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø