Znn3bq.jpeg
²é¿´: 755  |  »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
[»ù½ðÉêÇë] ÃæÉϱ¾×ÓÕýÎÄ33Ò³£¬Î¥¹æÂ𣿻ᱻµÍ·ÖÂ +7 1234567wang 2026-05-17 8/400 2026-05-18 15:07 by gy116024
[»ù½ðÉêÇë] ¹ú×ÔÈ»ÉÏ»áÒªÇó +3 ÎÞÃûÕßµÇɽ 2026-05-18 5/250 2026-05-18 14:16 by bnullh
[˶²©¼ÒÔ°] ¿¼²©×Ô¼ö +5 ¿ÆÑй·111 2026-05-13 6/300 2026-05-18 11:22 by ºýºýͿͿºÃ
[ÎÄѧ·¼²ÝÔ°] °ëÒ¹ºÈ¿§·È +3 myrtle 2026-05-15 5/250 2026-05-18 01:03 by СÉò2018
[¿¼²©] ÕÒ²©Ê¿Éúµ¼Ê¦ +4 С´úÏëÉϰ¶ 2026-05-15 5/250 2026-05-17 17:44 by ÍÑÓ±¶ø³ö
[¿¼²©] ¹âÁ¿×ÓÎïÀí·½Ïò ²©Ê¿ÕÐÉú 1ÈË£¨2026.09£© +3 sandyworld 2026-05-15 4/200 2026-05-17 14:38 by sandyworld
[¿¼ÑÐ] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 v9tggjlwd0 2026-05-15 4/200 2026-05-17 08:11 by 11n4dfd8yn
[˶²©¼ÒÔ°] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 v9tggjlwd0 2026-05-15 4/200 2026-05-17 08:06 by 11n4dfd8yn
[ÕÒ¹¤×÷] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 l7k6xnh0yc 2026-05-14 6/300 2026-05-17 07:31 by 11n4dfd8yn
[¿¼²©] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +6 l7k6xnh0yc 2026-05-14 6/300 2026-05-17 07:11 by 11n4dfd8yn
[ÕÒ¹¤×÷] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 k37jurhrau 2026-05-16 3/150 2026-05-17 01:37 by ue3ir18jc3
[²©ºóÖ®¼Ò] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 k37jurhrau 2026-05-16 4/200 2026-05-17 01:35 by ue3ir18jc3
[¿¼ÑÐ] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 k37jurhrau 2026-05-16 3/150 2026-05-17 01:25 by ue3ir18jc3
[˶²©¼ÒÔ°] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 ky2p12rrjj 2026-05-15 3/150 2026-05-17 00:45 by ue3ir18jc3
[¿¼ÑÐ] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 x0mp7owy2b 2026-05-15 4/200 2026-05-17 00:25 by ue3ir18jc3
[¸ß·Ö×Ó] ±¾ÈË×î½üÌ«ÏÐÁË£¬Ë­ÓÐÎÊÌâ¿ÉÒÔÌᣬÿÌì»áͳһ»Ø¸´ +9 Ò»Çж¼Êǿչ¤ 2026-05-12 20/1000 2026-05-16 19:52 by Equinoxhua
[˶²©¼ÒÔ°] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 x0mp7owy2b 2026-05-15 4/200 2026-05-16 17:45 by j6b2pdz07o
[¿¼ÑÐ] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.5.5.1.O.5.4,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 l7k6xnh0yc 2026-05-14 6/300 2026-05-16 11:29 by h3oerqvkv9
[˶²©¼ÒÔ°] ÉêÇ벩ʿ +3 ßÀ?ßÀ 2026-05-15 3/150 2026-05-16 11:01 by a4742549
[½Ìʦ֮¼Ò] ½Ìѧ¿Î¼þÄã»á¸øÍ¬Ñ§Âð +8 ˶ʿÑо¿ÉúÂð 2026-05-13 8/400 2026-05-14 22:23 by ³£¹æÁ¤Çà
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û