±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 616  |  »Ø¸´: 9
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

rxl

[½»Á÷] ¡¾ÇóÖú¡¿Êýѧ»ý·Ö

ÇëÎʸ÷λ
1/£¨x^5£©¡Á exp(-x)µÄ²»¶¨»ý·ÖÊÇʲôѽ£¿
Âé·³¸÷λÁË£¬·Ç³£¸Ðл£¡£¡£¡

[ Last edited by laizuliang on 2007-8-16 at 13:11 ]
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

fishboyer

ľ³æ (³õÈëÎÄ̳)

¡¾ÇóÖú¡¿Êýѧ»ý·Ö

¿É¿¼Âǽ«exp(-x)ÔÚx=0´¦Õ¹¿ª³ÉÌ©ÀÕ¼¶Êý
2Â¥2007-08-16 16:45:20
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

rxl

·Ç³£¸Ðлл£¬ÎÒÊÔÊÔ¡£
3Â¥2007-08-17 10:31:05
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

rxl

ÇëÎʸ÷λ»¹ÓбðµÄ·½·¨Â𠣿´ó¼Ò¶àÌáµãÒâ¼ûѽ£¡
4Â¥2007-08-21 13:04:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

shuxue007

½ð³æ (³õÈëÎÄ̳)

5Â¥2007-08-21 16:44:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

shuxue007

½ð³æ (³õÈëÎÄ̳)

¿¿!
°Ñ´ð°¸ÌùÉÏÈ¥ÔõôÏÔʾ²»³öÀ´ÄØ£¿
Ö»Óд«¸½¼þÁË£¬
´ð°¸Ã»Ê²Ã´ºÃ¿´µÄ£¬¸ßÊý×î»ù±¾µÄ֪ʶ·Ö²¼»ý·Ö·¨£¬
Â¥Ö÷ºÃºÃѧѧ£¡£¡£¡
6Â¥2007-08-21 16:55:21
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xuchuang6305

гæ (³õÈëÎÄ̳)

5Â¥µÄ´ð°¸´íÁË»¹ÍùÉÏ´«£¬×Ô¼ºËãË㣬µÃµ½µÄ´ð°¸µ¼ÊýµÈÓÚ1/£¨x^5£©¡Á exp(-x)Âð£¿ÄãÀïÃæÓÐÒ»ÏîlnxµÄµ¼ÊýÊÇ1/x£¬ÎÞ·¨±»ÆäËûµÄÏîÏ÷µô¡£Ó¦¸ÃÓ÷ֲ¼»ý·Ö×öû´í£¬Ö»²»¹ýÏÈÒªÖªµÀ¡Òe^x/x dx
7Â¥2007-08-21 17:36:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xuchuang6305

гæ (³õÈëÎÄ̳)

Òª¼ÆËã¡Òe^x/x dx£¬»¹µÃÓü¶Êý·¨£¬ËùÒԱȽÏÇãÏò һ¥µÄ½â·¨¡£²»ÐÅÄãËãË㣬¿´¿´½á¹û¿ÉÄÜÊÇÒ»¸ö·Ç¼¶ÊýÐÎʽÂð£¿Ã¿Ïî»ýÍêºó¾Í»áÓÐx^n/(n.n!)£¬´Ón=1¿ªÊ¼µ½ÎÞÇîÏî¡£
8Â¥2007-08-21 17:46:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

shuxue007

½ð³æ (³õÈëÎÄ̳)

´íÎó£¬Ð»Ð»Ö¸Õý!

ps:Èç´Ë¿´À´£¬´ËÌ⻹ÊÇÓбØÒªÌÖÂÛһϵÄ

Ôø¾­ÊÔͼ½«1/nת»¯Îª1/(n+1),1/((n+1)*(n+2)),1/((n+1)*(n+2)*(n+3))µÈµÄºÍµÄÐÎʽ£¬ÕâÑù¾Í¿ÉÒÔ½«×îÖÕ½á¹û¾Í¿ÉÒÔת»¯Îª·Ç¼¶ÊýÐÎʽ£¬ºóÀ´·¢ÏÖÕâÌõ·×ß²»Í¨¡£

СµÜ»¹ÔÚ˼¿¼ÆäËü·½Ê½£¬Óнá¹û±Ø¶¨»ØÌû¡£
9Â¥2007-08-22 09:08:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

rxl

лл¸÷룬Âé·³´ó¼ÒÁË¡£
10Â¥2007-08-24 13:00:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ rxl µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] »·¾³×¨Ë¶µ÷¼Á +4 »á˵»°µÄÖâ×Ó 2026-04-06 4/200 2026-04-06 17:28 by dongzh2009
[¿¼ÑÐ] 270·ÖÇóµ÷¼Á +5 maxjxbsk 2026-04-01 5/250 2026-04-06 15:32 by lin-da
[¿¼ÑÐ] 290Çóµ÷¼Á085701 +11 1314Åõ»¨ 2026-04-02 11/550 2026-04-06 13:31 by zllcz
[¿¼ÑÐ] 320·ÖÈ˹¤ÖÇÄܵ÷¼Á +8 Õñ¡ªTZ 2026-04-03 8/400 2026-04-05 22:33 by ·¶Ê½Ë¼Î¬
[¿¼ÑÐ] 272·ÖÇóµ÷¼Á +4 wangyile2233 2026-04-02 4/200 2026-04-05 22:21 by 286640313
[¿¼ÑÐ] ¼ÆËã»ú11408£¬286·ÖÇóµ÷¼Á +7 ľ×ÓÄî•„ 2026-04-05 7/350 2026-04-05 19:02 by chy09050039
[¿¼ÑÐ] ÇóÉúÎïѧѧ˶µ÷¼Á¡ª¡ª364·Ö +7 ÔÆ¶äåÞÍäÖ¸ÄÏ 2026-04-04 7/350 2026-04-04 22:49 by zhyzzh
[¿¼ÑÐ] 301Çóµ÷¼Á +18 ÂæÍÕÄÐÈË 2026-04-02 18/900 2026-04-04 20:33 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ×Ü·Ö328ÉúÎïÓëÒ½Ò©¿¼ÊýѧÇóµ÷¼Á +7 aaadim 2026-04-02 9/450 2026-04-03 22:53 by syh9288
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +7 ÏàÐűػá¹ââÍòÕ 2026-04-02 7/350 2026-04-03 16:48 by rzh123456
[¿¼ÑÐ] 085801 ×Ü·Ö275 ±¾¿ÆÐÂÄÜÔ´ Çóµ÷¼Á +19 bradoner 2026-04-01 23/1150 2026-04-03 10:07 by linyelide
[¿¼ÑÐ] 260Çóµ÷¼Á +3 ÖìÜÆÁÕ 2026-04-02 3/150 2026-04-03 08:44 by yulian1987
[¿¼ÑÐ] 348Çóµ÷¼Á +11 zzzzyk123 2026-04-01 11/550 2026-04-02 16:52 by Wang200018
[¿¼ÑÐ] µ÷¼Á +3 ºÃºÃ¶ÁÊé¡£ 2026-04-01 6/300 2026-04-02 15:49 by liumengping
[¿¼ÑÐ] 282Çóµ÷¼Á +13 ºôÎü¶¼ÊǼõ·Ê 2026-04-01 13/650 2026-04-02 14:10 by baoball
[¿¼ÑÐ] ²ÄÁÏרҵÇóµ÷¼Á +10 ÔÂÔÂÄñľ 2026-04-01 10/500 2026-04-02 12:57 by wxiongid
[¿¼ÑÐ] 0817»¯¹¤Ñ§Ë¶µ÷¼Á +11 ŬÁ¦Éϰ¶ÖУ¡ 2026-03-31 11/550 2026-04-01 20:30 by Àµ´ºÑÞ
[¿¼ÑÐ] 085600 Ò»Ö¾Ô¸9 ×Ü·Ö351 Çóµ÷¼ÁѧУ +7 czhcz 2026-03-31 9/450 2026-04-01 19:24 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 08¹¤¿Æ275Çóµ÷¼Á£¬¿É¿ç¿¼¡£ +5 AaAa7420 2026-03-31 5/250 2026-04-01 15:21 by 159357hjz
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»²ÄÁϹ¤³Ì×Ü·Ö358 +5 cs0106 2026-04-01 7/350 2026-04-01 11:45 by wangjy2002
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û