²é¿´: 3751  |  »Ø¸´: 6
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

shenjianzi

гæ (СÓÐÃûÆø)

[ÇóÖú] Èý½Çº¯ÊýµÄµ¼ÊýµÄ¸ÅÂÊÃܶȺ¯ÊýÊÇʲôÐÎÊ½ÄØ£¿

±ÈÈçÒ»¸öÈý½Çº¯Êý,y=cos xµÄµ¼Êý±í´ïʽΪ y'=-sinx£¬ÄÇôËã³öµÄµ¼ÊýµÄ¸ÅÂÊÃܶȺ¯
ÊýÊÇʲôÐÎÊ½ÄØ£¿Çó½Ì¸÷λͳ¼ÆÈËÊ¿
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

voyagerlele

Ìú³æ (³õÈëÎÄ̳)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÒýÓûØÌû:
4Â¥: Originally posted by shenjianzi at 2012-06-03 21:07:05
Éèy=cos(x), ËüµÄµ¼ÊýΪy'=-sin(x)¡£ÔÚ¶¨ÒåÓò£¬¿´y'µÄ¸ÅÂÊÃܶȺ¯Êý¡£y'µÄÖµÓòΪ£¬ÊÇÒ»¸öÁ¬ÐøÐ͵ıäÁ¿¡£¿´y'ÔÚÄڵĸÅÂÊÊǶà´ó¡£aÔÚ-1µ½1Ö®¼ä¡£
ÎÒʹÓÃÓÐÏÞ²ÉÑù£¬·¢ÏÖ²»ÊǾùÔÈ·Ö²¼£¬ÊÇÖмäµÍ£¬Á½Í·¸ß£¬ÒÔ0ΪÖÐÐÄµÄ¶Ô ...

¸ÅÂÊÃܶÈÊǷǸºº¯Êý£¬ÔÚRÖáÉϵĻý·ÖÊÇ1£¬ÏÈÂú×ãÁËÕâÁ½Ìõ£¬ÔÙÀ´Ì¸±ðµÄÎÊÌâ°É
5Â¥2012-06-26 05:57:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 7 ¸ö»Ø´ð

nxhchao

Í­³æ (ÕýʽдÊÖ)

È¥²é²éÊýÀíͳ¼ÆÓë¸ÅÂÊÂÛÕâ±¾Êé

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
»îמÍÊÇÒ»ÖÖÐÞÐÐ
2Â¥2012-06-03 10:51:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

math2000

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
soliton923: Ó¦ÖúÖ¸Êý-1, ÊÕ»ØÓ¦ÖúÖ¸Êý 2012-06-03 23:19:52
ûÓÐÀí½âlzµÄÎÊÌ⣬ÀÏÁË¡£
ÄܰÑÎÊÌâ˵ÏêϸµãÂð
3Â¥2012-06-03 12:31:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

shenjianzi

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by math2000 at 2012-06-03 12:31:03
ûÓÐÀí½âlzµÄÎÊÌ⣬ÀÏÁË¡£
ÄܰÑÎÊÌâ˵ÏêϸµãÂð

Éèy=cos(x), ËüµÄµ¼ÊýΪy'=-sin(x)¡£ÔÚ¶¨ÒåÓò[-pi/2,pi/2]£¬¿´y'µÄ¸ÅÂÊÃܶȺ¯Êý¡£y'µÄÖµÓòΪ[-1,1]£¬ÊÇÒ»¸öÁ¬ÐøÐ͵ıäÁ¿¡£¿´y'ÔÚ[a+delta,a-delta]ÄڵĸÅÂÊÊǶà´ó¡£aÔÚ-1µ½1Ö®¼ä¡£
ÎÒʹÓÃÓÐÏÞ²ÉÑù£¬·¢ÏÖ²»ÊǾùÔÈ·Ö²¼£¬ÊÇÖмäµÍ£¬Á½Í·¸ß£¬ÒÔ0ΪÖÐÐĵĶԳƷֲ¼¡£
4Â¥2012-06-03 21:07:05
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á £¬Áù¼¶Òѹý£¬ÓпÆÑо­Àú +12 êØÎõÙâ 2026-03-15 12/600 2026-03-19 19:42 by maocaozhuxi
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄϾ©Àí¹¤´óѧ085701×ÊÔ´Óë»·¾³302·ÖÇóµ÷¼Á +3 ¿ûè÷ÎÀ¶Ó 2026-03-18 5/250 2026-03-19 19:35 by ¸øÄãÄã×¢ÒâÐÝÏ¢
[¿¼ÑÐ] ²ÄÁÏר˶274Ò»Ö¾Ô¸ÉÂÎ÷ʦ·¶´óѧÇóµ÷¼Á +8 Ñ¦ÔÆÅô 2026-03-13 8/400 2026-03-19 15:36 by haoshis
[¿¼ÑÐ] 286Çóµ÷¼Á +6 lemonzzn 2026-03-16 10/500 2026-03-19 14:31 by lemonzzn
[¿¼ÑÐ] 281Çóµ÷¼Á£¨0805£© +9 ÑÌÏ«Ò亣 2026-03-16 19/950 2026-03-19 11:42 by laoshidan
[¿¼ÑÐ] ²ÄÁÏ080500µ÷¼ÁÇóÊÕÁô +4 Ò»¿Åmeteor 2026-03-13 4/200 2026-03-19 10:32 by 30660438
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á +8 ÄÝÄÝninicgb 2026-03-15 12/600 2026-03-19 05:55 by anny19840123
[¿¼ÑÐ] 304Çóµ÷¼Á +6 ˾¿Õ. 2026-03-18 6/300 2026-03-18 23:03 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 08¹¤¿Æ 320×Ü·Ö Çóµ÷¼Á +5 À滨çóÍí·ç 2026-03-17 5/250 2026-03-18 14:49 by haxia
[¿¼ÑÐ] 302Çóµ÷¼Á +10 ºôºôºô¡£¡£¡£¡£ 2026-03-17 10/500 2026-03-18 12:45 by Linda Hu
[¿¼ÑÐ] ÉúÎïѧ071000 329·ÖÇóµ÷¼Á +3 ÎÒ°®ÉúÎïÉúÎﰮΠ2026-03-17 3/150 2026-03-18 10:12 by macy2011
[¿¼ÑÐ] »·¾³¹¤³Ìµ÷¼Á +8 ´ó¿Édigkids 2026-03-16 8/400 2026-03-18 09:36 by zhukairuo
[¿¼ÑÐ] 296Çóµ÷¼Á +5 ´ó¿Ú³Ô·¹ ÉíÌ彡 2026-03-13 5/250 2026-03-17 21:05 by ²»»ó¿ÉÀÖ
[¿¼ÑÐ] Ò»Ö¾Ô¸£¬¸£ÖÝ´óѧ²ÄÁÏר˶339·ÖÇóµ÷¼Á +3 ľ×ÓmomoÇàÕù 2026-03-15 3/150 2026-03-17 07:52 by laoshidan
[¿¼ÑÐ] 304Çóµ÷¼Á +4 ahbd 2026-03-14 4/200 2026-03-16 16:48 by ÎҵĴ¬Îҵĺ£
[¿¼ÑÐ] 070303 ×Ü·Ö349Çóµ÷¼Á +3 LJY9966 2026-03-15 5/250 2026-03-16 14:24 by xwxstudy
[¿¼ÑÐ] 288Çóµ÷¼Á +4 Ææµã0314 2026-03-14 4/200 2026-03-14 23:04 by JourneyLucky
[¿¼ÑÐ] 330Çóµ÷¼Á +3 ?½´¸øµ÷¼Á¹òÁË 2026-03-13 3/150 2026-03-14 10:13 by JourneyLucky
[˶²©¼ÒÔ°] 085600 260·ÖÇóµ÷¼Á +3 Ìì¿Õ»¹ÏÂÓêô 2026-03-13 5/250 2026-03-13 18:46 by Ìì¿Õ»¹ÏÂÓêô
[¿¼ÑÐ] 070303Ò»Ö¾Ô¸Î÷±±´óѧѧ˶310ÕÒµ÷¼Á +3 dÈçÔ¸Éϰ¶ 2026-03-13 3/150 2026-03-13 10:43 by houyaoxu
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û