±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 679  |  »Ø¸´: 7
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

ygq_611

Í­³æ (³õÈëÎÄ̳)

[½»Á÷] ¡¾ÇóÖú¡¿Î¢·Ö·½³Ì

ay^2y'+by+c=0
a¡¢b¡¢c¾ùΪ³£Êý¡£y^2ÊÇyµÄƽ·½

[ Last edited by cadick on 2009-12-12 at 02:56 ]
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

jryboy

Òø³æ (СÓÐÃûÆø)

¡ï
mingdong(½ð±Ò+1,VIP+0):¸Ðл½»Á÷£¡ 10-14 00:34
ÔÎËÀ£¬ÊÇ»ù±¾µÄ΢·Öʽ£¬Èç¹ûû¼Ç´íµÄ»°¿ÉÒÔÖ±½ÓÌ×¹«Ê½µÄ
2Â¥2009-10-13 22:51:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

scuccc

½ð³æ (ÕýʽдÊÖ)

ÔÎÁË£¬»¹ÊǶ¥ÏÂ
3Â¥2009-10-13 23:26:34
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

heshun

Í­³æ (СÓÐÃûÆø)

¡ï
mingdong(½ð±Ò+1,VIP+0):thanks£¡ 10-14 00:34
, yes , you can find answer in any math books
Æí¸££¡£¡
4Â¥2009-10-13 23:40:26
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

jove1782

ľ³æ (ÕýʽдÊÖ)

Сľ³æ·çÑÅЭ»á´úÀíÃØÊ鳤

¡ï
mingdong(½ð±Ò+1,VIP+0):¸Ðл½»Á÷£¡ 10-14 17:37
ÊÖËã¼´¿É
¤â¤Ã¤È¤âÓÀ¤¯¾A¤¯?ۤϡ¢ˆó¤ï¤ì¤Ì?ۤǤ¢¤ë¡£
5Â¥2009-10-14 08:50:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ygq_611

Í­³æ (³õÈëÎÄ̳)

Â¥Éϵģ¬ÇëŪÇå³þÔÙ˵°É£¬ÕâÊÇ·ÇÒ»°ã¸ñʽ£¬ÓÐרÃŵÄÎÄÕÂÀ´²ûÊö£¬µ«Ì«¸´ÔÓÁË£¬Ã»ÅªÃ÷°×¡£
6Â¥2009-10-15 08:19:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

qianyang

Ìú¸Ëľ³æ (СÓÐÃûÆø)

¡ï
dongdong3881(½ð±Ò+0,VIP+0):лл½»Á÷ 10-15 18:02
dongdong3881(½ð±Ò+0,VIP+0): 10-15 18:09
mingdong(½ð±Ò+1,VIP+0):¸Ðл½»Á÷£¡ 10-16 10:55
Õâ¸ö·½³ÌºÜÄѽâµÄ.Èç¹ûÊÇÊýÖµµÄ»°,×îºÃÓõü´ú·¨,¹¤³ÌÉ϶¼ÊÇÔõôŪµÄ,
7Â¥2009-10-15 17:49:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

С¶¹°ê

ľ³æ (ÖøÃûдÊÖ)

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
dongdong3881(½ð±Ò+2,VIP+0):¸ø¸öºì°ü ¶à¶à½»Á÷ 10-16 14:10
ygq_611(½ð±Ò+10,VIP+0): 10-16 15:37
ºÇºÇÆäʵºÜºÃ½âµÄ¡®
ay^2y'+by+c=0£¬£¨abc£¡=0£©
£¨1£© y=0ʱ£¬·½³Ì²»Âú×ã
£¨2£©y£¡=0
y'=(-by-c)/(ay^2)£¬¸ÃʽµÈ¼ÛÓÚdy/dx=(-by-c)/(ay^2)
dy/(-by-c)/(ay^2)=dx,£¬ÕâÑù¶Ô·½³ÆÁ½±ßͬʱ»ý·Ö¾Í¿ÉÒÔËãÁË¡£ÎҾͲ»ËãÁË£¬ÕâÊÇÊôÓÚÒ»°ãµÄ»ý·ÖÎÊÌâ

×ÜÖ®ÕâÊÇÒ»°ãµÄ¿É·ÖÀë±äÁ¿À´Çó½âµÄÒ»½×΢·Ö·½³Ì
8Â¥2009-10-16 13:56:32
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ ygq_611 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 315Çóµ÷¼Á +5 ˳Àí³ÉÕÅ 2026-04-03 6/300 2026-04-03 13:21 by À´¿´Á÷ÐÇÓê10
[¿¼ÑÐ] 324Çóµ÷¼Á +3 ÏëÉÏѧÇóµ÷ 2026-04-03 3/150 2026-04-03 12:29 by wxiongid
[¿¼ÑÐ] ±¾¿ÆÐÂÄÜÔ´¿ÆÑ§Ó빤³Ì£¬Ò»Ö¾Ô¸»ªÀíÄܶ¯285Çóµ÷¼Á +9 AZMK 2026-03-28 13/650 2026-04-03 11:18 by qqq850810
[¿¼ÑÐ] ±§Ç¸ +5 ÌïºéÓÐ 2026-03-30 5/250 2026-04-03 10:24 by linyelide
[¿¼ÑÐ] 289Çóµ÷¼Á +4 Acesczlo 2026-03-29 5/250 2026-04-03 10:09 by ²»168
[¿¼ÑÐ] 262Çóµ÷¼Á +6 ÀøÖ¾Ò»¶¨·¢ÎÄÕ 2026-04-02 7/350 2026-04-03 09:54 by linyelide
[¿¼ÑÐ] Ò»Ö¾Ô¸aÇø211£¬085601-307·ÖÇóµ÷¼Á +13 µ³¼ÎºÀ 2026-03-31 26/1300 2026-04-03 08:33 by 495374996
[¿¼ÑÐ] Çóµ÷¼Á +7 Aniyaio 2026-04-02 7/350 2026-04-02 16:42 by zzsw+
[¿¼ÑÐ] 310Çóµ÷¼Á +17 ÕùÈ¡¾Åµã˯ 2026-03-30 17/850 2026-04-02 16:40 by guanxin1001
[¿¼ÑÐ] 314Çóµ÷¼Á +11 1xiaojun23 2026-03-31 12/600 2026-04-02 12:31 by 1xiaojun23
[¿¼ÑÐ] 085900ÍÁľˮÀû336·ÖÇóµ÷¼Á +4 Zhangjiangj 2026-03-31 6/300 2026-04-02 11:40 by 1753564080
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»´ó²ÄÁϹ¤³Ì£¬×Ü·Ö358 +4 cs0106 2026-04-01 4/200 2026-04-02 07:42 by ÉÐË®¸óÖ÷
[¿¼ÑÐ] Ó¢Ò»ÊýÒ»408£¬×Ü·Ö284£¬¶þÕ½Õæ³ÏÇóµ÷¼Á +12 12.27 2026-03-30 14/700 2026-04-02 00:18 by ÐÀϲ777
[¿¼ÑÐ] 085602»¯Ñ§¹¤³Ì268·Ö¶×µ÷¼Á +8 ÔÂÕÕ»¨ÁÖ¡£ 2026-04-01 8/400 2026-04-01 22:08 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 298Çóµ÷¼Á +4 ʲôÊÇÅÖÍ·Óã 2026-03-30 6/300 2026-04-01 22:06 by ¿Í¶ûÃÀµÂ
[˶²©¼ÒÔ°] ²©Ò»±»ËͳöÁªÅà¸Ð¾õ²»ÊÊÓ¦Ôõô°ì +3 È«´åµÄ¹· 2026-03-31 3/150 2026-04-01 10:44 by 328838485
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ324Çóµ÷¼Á +6 hanamiko 2026-03-29 6/300 2026-03-31 16:35 by hypershenger
[¿¼ÑÐ] ±¾¿Æ211°²È«¹¤³Ì£¬³õÊÔ290·Ö£¬Çóµ÷¼Á +3 2719846834 2026-03-28 3/150 2026-03-31 13:52 by ÈÈÇéɳĮ
[¿¼ÑÐ] 269Çóµ÷¼Á +4 ÎÒÏë¶ÁÑÐ11 2026-03-31 4/200 2026-03-31 10:04 by cal0306
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á +3 raojunqi0129 2026-03-28 3/150 2026-03-28 15:27 by ÂäÉ˼
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û