Znn3bq.jpeg
²é¿´: 1891  |  »Ø¸´: 14

hanbinddd

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
5Â¥: Originally posted by hank612 at 2013-12-17 05:27:39
Èô f(x)=1/(x ln(x) ),  Ôò x*f(x)= 1/ln(x) µ¥µ÷Ç÷ÓÚÁã, µ«²»´æÔÚ a>0 ʹµÃ x*f(x) < x^{-a}.

Õë¶ÔÕâЩÀýÍâÇé¿ö, peterflyerÖ¸³ö , xf(x)µ¥µ÷Ç÷ÓÚÁã, ²»·ÁÉèf(x)>=0, ·ñÔò¿ÉÒÔ¿¼ÂÇ -f(x).
ÄÇô ÓÉ»ý ...

ллÄúµÄ°ïÖú£¡£¡

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
11Â¥2013-12-17 12:30:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hanbinddd

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by peterflyer at 2013-12-16 23:55:24
µÚÒ»Ì⣺
ÒòΪIntegral{f(x)*dx,0,¡Þ}ÊÕÁ²£¬¹ÊxÇ÷ÓÚÎÞÇîʱf(x)Ç÷ÓÚÁ㣬
ÓÖÓÉx*f(x)ÔÚ[a,¡Þ)Éϵ¥µ÷£¬ÓÐÇ÷ÏòÎÞÇîʱx*f(x)Ç÷ÏòÁã¡£ÕâÊÇÒòΪÈôËü²»Ç÷ÏòÁ㣬Ôò´æÔÚÒ»¸öÕý³£ÊýC,ÓÐx*f(x)>C»òx*f(x)<-C,ÎÞÂÛÄÄÖÖÇé ...

Õâ¸öÖ¤Ã÷ÓÐÎÊÌ⣬Ê×ÏÈxÇ÷ÓÚÎÞÇîf(x)¼«ÏÞ²»Ò»¶¨ÊÇÁ㣬  Èçx*sinx^4  ÔÚ1µ½ÎÞÇî»ý·ÖÊÕÁ²µ«ÊǼ«ÏÞ²»´æÔÚ¡£  »¹ÇëÔÙÕå×ÃһϴËÌ⣬ллÁË

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
12Â¥2013-12-17 14:21:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hanbinddd

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by Á«¶¯²¨¹âºÆÔ at 2013-12-16 20:10:33
µÚ¶þÌâµÄ½â·¨ÈçͼËùʾ£º

QQͼƬ20131216201116.jpg

ÎÒÓе㲻Ã÷°×£¬ÎªÊ²Ã´f'(x)ÔÚ(0£¬1)ÉϺã´óÓÚ1»òСÓÚ1ÄØ£¬µ¼º¯ÊýÓÖ²»Ò»¶¨ÊÇÁ¬ÐøµÄ°É

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
13Â¥2013-12-17 14:36:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

g2003lxm

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by Á«¶¯²¨¹âºÆÔ at 2013-12-16 20:10:33
µÚ¶þÌâµÄ½â·¨ÈçͼËùʾ£º

QQͼƬ20131216201116.jpg

´íµÄ½â·¨.µ¼ÊýÓÖûÓÐ˵Á¬ÐøÔõôÅжϵ¼ÊýºãСÓÚ1»ò´óÓÚ1.

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
14Â¥2013-12-21 22:05:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hanbinddd

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
14Â¥: Originally posted by g2003lxm at 2013-12-21 22:05:17
´íµÄ½â·¨.µ¼ÊýÓÖûÓÐ˵Á¬ÐøÔõôÅжϵ¼ÊýºãСÓÚ1»ò´óÓÚ1.
...

Êǵģ¬ÎÒÒ»¿ªÊ¼Ò²·¢ÏÖÁËÕâ¸öÎÊÌ⣬ÄÇÔõô×öÄØ£¿

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
15Â¥2013-12-22 10:03:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ hanbinddd µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ¼ª´ó¼ÆËã»ú¼¼Êõ331·Ö£¬Ó¢ÓïÁù¼¶£¬Çóµ÷¼Á +3 ·å·å021116 2026-04-09 3/150 2026-04-10 20:01 by chemisry
[¿¼ÑÐ] ±¾¿ÆÎ÷¹¤´ó 324Çóµ÷¼Á +4 wysyjs25 2026-04-10 4/200 2026-04-10 20:00 by À´¿´Á÷ÐÇÓê10
[¿¼ÑÐ] 346£¬¹¤¿Æ0854Çóµ÷¼Á£¬×¨Ë¶ +5 moser233 2026-04-10 6/300 2026-04-10 18:04 by ÖÜÉÛÑô
[¿¼ÑÐ] ³õÊÔ261 +3 AshtÉÙ 2026-04-10 6/300 2026-04-10 16:38 by AshtÉÙ
[¿¼ÑÐ] Ò»Ö¾Ô¸0703»¯Ñ§ÕÐ61×îÖÕÅÅÃû62»¯Ñ§Çóµ÷¼Á +24 ÕÐ61ÅÅÃû62 2026-04-07 28/1400 2026-04-10 16:15 by yx54321
[¿¼ÑÐ] 285Çóµ÷¼Á +9 AZMK 2026-04-07 11/550 2026-04-10 15:24 by AZMK
[¿¼ÑÐ] Çóµ÷¼Á +11 Ñ©·ê¶¬ 2026-04-10 11/550 2026-04-10 14:38 by Abskk
[¿¼ÑÐ] ²ÄÁÏר˶(0856) 339·ÖÇóµ÷¼Á +11 ¹þ¹þ¹þ¶ì¹þ¹þ¹þ 2026-04-04 11/550 2026-04-10 09:37 by 690616278
[¿¼ÑÐ] 0854µ÷¼Á +7 950824he@ 2026-04-09 7/350 2026-04-10 09:10 by Delta2012
[¿¼ÑÐ] ²ÄÁÏר˶³õÊÔ·Ö332Ò»Ö¾Ô¸Î÷±±¹¤Òµ´óѧ£¬ +12 ¹ÊÈË?? 2026-04-09 12/600 2026-04-09 18:34 by Ccclqqq
[¿¼ÑÐ] 1U¶Ü¼ÇµÃ¼ÇµÃ¾Í +9 sanjin020722 2026-04-08 10/500 2026-04-09 14:11 by Ê«Óë×ÔÓÉ
[¿¼ÑÐ] 327Çóµ÷¼Á +12 Xxjc1107. 2026-04-06 12/600 2026-04-08 16:46 by luoyongfeng
[¿¼ÑÐ] ²ÄÁÏר˶(0856) 339·ÖÇóµ÷¼Á +16 ¹þ¹þ¹þ¶ì¹þ¹þ¹þ 2026-04-05 16/800 2026-04-08 16:02 by luoyongfeng
[¿¼ÑÐ] »¯Ñ§0703-Ò»Ö¾Ô¸211-338·ÖÇóµ÷¼Á +10 vants 2026-04-05 11/550 2026-04-08 16:02 by screening
[¿¼ÑÐ] Ò»Ö¾Ô¸211£¬»¯Ñ§Ñ§Ë¶£¬310·Ö£¬±¾¿ÆÖصãË«·Ç£¬Çóµ÷¼Á +10 ŬÁ¦·Ü¶·112 2026-04-07 10/500 2026-04-08 15:01 by screening
[¿¼ÑÐ] 283Çóµ÷¼Á +19 A child 2026-04-04 19/950 2026-04-08 14:26 by xingguangj
[¿¼ÑÐ] 22408 µ÷¼Á²ÄÁÏ +7 ÎÒ½Ðez 2026-04-06 8/400 2026-04-07 17:12 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 081200-11408-367ѧ˶Çóµ÷¼Á +4 1_2_3111 2026-04-06 4/200 2026-04-07 08:13 by jp9609
[¿¼ÑÐ] »úеר˶274Çóµ÷¼Á£¬²»ÌôרҵѧУ +6 ·º·º2333 2026-04-05 8/400 2026-04-06 18:06 by ·º·º2333
[¿¼ÑÐ] Çóµ÷¼Á +3 ũҵ¹¤³ÌÓëÐÅÏ¢¼ 2026-04-04 3/150 2026-04-04 12:19 by Éá¶øºóµÃ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û