£¨±¾´óÌâ18·Ö£©
£¨1£©ÒÑ֪ƽÃæÉÏÁ½¶¨µã£®£¬ÇÒ¶¯µãM±êÂú×ã=0£¬Ç󶯵ãµÄ¹ì¼£·½³Ì£»
£¨2£©Èô°Ñ£¨1£©µÄMµÄ¹ì¼£Í¼ÏñÏòÓÒƽÒÆÒ»¸öµ¥Î»£¬ÔÙÏòÏÂƽÒÆÒ»¸öµ¥Î»£¬Ç¡ÓëÖ±Ïßx+ky¨C3=0 ÏàÇУ¬ÊÔÇóʵÊýkµÄÖµ£»
£¨3£©Èçͼ£¬lÊǾ¹ýÍÖÔ²³¤ÖᶥµãAÇÒÓ볤Öá´¹Ö±µÄÖ±Ïߣ¬E£®FÊÇÁ½¸ö½¹µã£¬µãPÎl£¬P²»ÓëAÖغϡ£ÈôÐEPF=£¬ÇóµÄÈ¡Öµ·¶Î§¡£
²¢½«´ËÌâÀà±Èµ½Ë«ÇúÏߣº£¬ÊǾ¹ý½¹µãÇÒÓëʵÖá´¹Ö±µÄÖ±Ïߣ¬ÊÇÁ½¸ö¶¥µã£¬µãPÎl£¬P²»ÓëÖغϣ¬Çë×÷³öÆäͼÏñ¡£Èô£¬Ð´³ö½ÇµÄÈ¡Öµ·¶Î§¡££¨²»ÐèÒª½âÌâ¹ý³Ì£©
£¨1£©É裬´Ë¼´µãMµÄ¹ì¼£·½³Ì¡£¡¡¡¡3·Ö
£¨2£©½«x2+y2=4ÏòÓÒƽÒÆÒ»¸öµ¥Î»£¬ÔÙÏòÏÂƽÒÆÒ»¸öµ¥Î»ºó£¬
µÃµ½Ô²£¨x¨C1£©2+£¨y+1£©2=4¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡5·Ö
ÒÀÌâÒâÓУ¬µÃk=0»ò¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡8·Ö
£¨3£©£¨¢¡£©Ö¤Ã÷£º²»·ÁÉèµãPÔÚAµÄÓҲ࣬²¢ÉèP£¨t, ¨C5£©£¨t>0£©£¬
Ôò¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡10·Ö
ËùÒÔ¡¡¡¡¡¡¡¡12·Ö
ËùÒÔ0<tana¡Ü¡£ÏÔÈ»aΪÈñ½Ç£¬¼´£º0<a¡Üarctan¡¡¡¡¡¡¡¡¡¡¡14·Ö
£¨¢¢£©Èçͼ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡16·Ö
£¨Í¼ÐÎÖÐûÓÐÌåÏÖ³öË«ÇúÏߵĽ¥½üÐԵģ¬¿Û1·Ö£©
¡£¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡18·Ö
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º ÌâÐÍ£º
£¨±¾´óÌâÂú·Ö10·Ö£©£®ÄÜ·ñ½«ÏÂÁÐÊý×éÖеÄÊýÌîÈë3¡Á3µÄ·½¸ñ±í£¬Ã¿¸öС·½¸ñÖÐÌîÒ»¸öÊý£¬Ê¹µÃÿÐС¢Ã¿ÁС¢Á½Ìõ¶Ô½ÇÏßÉϵÄ3¸öÊýµÄ³Ë»ý¶¼ÏàµÈ£¿ÈôÄÜ£¬Çë¸ø³öÒ»ÖÖÌî·¨£»Èô²»ÄÜ£¬Çë¸øÓèÖ¤Ã÷.£¨¢ñ£©2,4,6,8,12,18,24,36,48£» £¨¢ò£©2,4,6,8,12,18,24,36,72.
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º2011-2012ѧÄêÉϺ£ÊÐÆÖ¶«ÐÂÇø¸ßÈýµÚÈý´ÎÄ£Ä⿼ÊÔÀí¿ÆÊýѧÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ
£¨±¾´óÌâÂú·Ö18·Ö£©±¾´óÌâ¹²ÓÐ3¸öСÌ⣬µÚ1СÌâÂú·Ö4·Ö£¬µÚ2СÌâÂú6·Ö£¬µÚ3СÌâÂú8·Ö.
ÒÑÖªº¯Êý£»£¬
£¨1£©µ±ÎªÅ¼º¯Êýʱ£¬ÇóµÄÖµ¡£
£¨2£©µ±Ê±£¬ÔÚÉÏÊǵ¥µ÷µÝÔöº¯Êý£¬ÇóµÄÈ¡Öµ·¶Î§¡£
£¨3£©µ±Ê±£¬£¨ÆäÖУ¬£©£¬Èô£¬ÇÒº¯ÊýµÄͼÏñ¹ØÓÚµã¶Ô³Æ£¬ÔÚ´¦È¡µÃ×îСֵ£¬ÊÔ̽ÌÖÓ¦¸ÃÂú×ãµÄÌõ¼þ¡£
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º2010-2011ѧÄêÕã½Ê¡Äþ²¨ÊаËУ¸ßÈýÁª¿¼ÊýѧÎľí ÌâÐÍ£º½â´ðÌâ
Èý¡¢½â´ðÌ⣺±¾´óÌâ¹²5СÌ⣬¹²72·Ö¡£½â´ðӦд³öÎÄ×Ö˵Ã÷¡¢Ö¤Ã÷¹ý³Ì»òÑÝËã²½Öè¡£
18.£¨±¾Ð¡ÌâÂú·Ö14·Ö£© A¡¢BÊǵ¥Î»Ô²OÉϵĶ¯µã£¬ÇÒA¡¢B·Ö±ðÔÚµÚÒ»¡¢¶þÏóÏÞ£¬CÊÇÔ²OÓëÖáÕý°ëÖáµÄ½»µã£¬ ΪµÈÑüÖ±½ÇÈý½ÇÐΡ£¼Ç (1)ÈôAµãµÄ×ø±êΪ£¬Çó µÄÖµ (2)ÇóµÄÈ¡Öµ·¶Î§¡£
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â
£¨±¾´óÌâ18·Ö£©
ÔĶÁÏÂÃæËù¸ø²ÄÁÏ£ºÒÑÖªÊýÁÐ{an}£¬a1=2£¬an=3an¨C1+2£¬ÇóÊýÁеÄͨÏîan¡£
½â£ºÁîan=an¨C1=x£¬ÔòÓÐx=3x+2£¬ËùÒÔx= ¨C1£¬¹ÊÔµÝÍÆʽan=3an¨C1+2¿Éת»¯Îª£º
an+1=3£¨an¨C1+1£©£¬Òò´ËÊýÁÐ{an+1}ÊÇÊ×ÏîΪa1+1£¬¹«±ÈΪ3µÄµÈ±ÈÊýÁС£
¸ù¾ÝÉÏÊö²ÄÁÏËù¸ø³öÌáʾ£¬½â´ðÏÂÁÐÎÊÌ⣺
ÒÑÖªÊýÁÐ{an}£¬a1=1£¬an=3an¨C1+4£¬
£¨1£©ÇóÊýÁеÄͨÏîan£»²¢ÓýâÎö¼¸ºÎÖеÄÓйØ˼Ïë·½·¨À´½âÊÍÆäÔÀí£»
£¨2£©Èô¼ÇSn=£¬ÇóSn;
£¨3£©ÈôÊýÁÐ{bn}Âú×㣺b1=10£¬bn+1=100£¬ÀûÓÃËùѧ¹ýµÄ֪ʶ£¬°ÑÎÊÌâת»¯Îª¿ÉÒÔÓÃÔĶÁ²ÄÁϵÄÌáʾ£¬Çó³ö½âÊýÁÐ{bn}µÄͨÏʽbn¡£
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com