±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1002  |  »Ø¸´: 8

yyfeifei

ľ³æ (ÕýʽдÊÖ)

[ÇóÖú] ³õÖм¸ºÎÌâ5½ð±Ò1

ÔÚ∆ABCÖУ¬¡ÏABC=60¡ã£¬¡ÏACB=40¡ã£¬PΪÐÎÄÚÒ»µã£¬¡ÏPBC=20¡ã£¬¡ÏPCB=10¡ã£¬Çó¡ÏPABµÄ¶ÈÊý¡£

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

thekissofgod

Í­³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
СÓêÃÈÃÈ: ½ð±Ò+1, лл¹Ø×¢~ 2012-09-06 15:27:16
yyfeifei: ½ð±Ò+5, ºÇºÇ£¬Ò²¸øÄãÁË 2012-09-22 16:58:18
½ÇPAB=PAC=40
ÕýÏÒ¶¨Àí°É£¬ºÍÄã·¢µÄÁíÍâÒ»¸öÌû×ÓÏàËÆ£¬Ö÷ÒªÀûÓÃPB/PCµÄÖµ¹ý¶É¡£
´Ëʱ²»²©ºÎʱ²©
2Â¥2012-08-31 22:47:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yyfeifei

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by thekissofgod at 2012-08-31 22:47:37
½ÇPAB=PAC=40
ÕýÏÒ¶¨Àí°É£¬ºÍÄã·¢µÄÁíÍâÒ»¸öÌû×ÓÏàËÆ£¬Ö÷ÒªÀûÓÃPB/PCµÄÖµ¹ý¶É¡£

°ÝÍдóÏÀ£¬ÄÜ·ñÓÐÏêϸ¹ý³Ì£¿ÕýÏÒ¶¨Àí¿ÉÄܳõÖв»ÄÜÓð¡
3Â¥2012-09-01 14:08:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ccyzrb

½ð³æ (СÓÐÃûÆø)

¡ï
СÓêÃÈÃÈ: ½ð±Ò+1, лл¹Ø×¢~ 2012-09-07 09:48:36
ÒýÓûØÌû:
3Â¥: Originally posted by yyfeifei at 2012-09-01 14:08:19
°ÝÍдóÏÀ£¬ÄÜ·ñÓÐÏêϸ¹ý³Ì£¿ÕýÏÒ¶¨Àí¿ÉÄܳõÖв»ÄÜÓð¡...

ÕýÐþ¶¨Àí¿ÉÒÔÓ㬹ؼüÊÇ½â´øÈý½Çº¯ÊýµÄ·½³Ì¡£
4Â¥2012-09-02 13:14:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mushuai

гæ (³õÈëÎÄ̳)

¡ï ¡ï ¡ï ¡ï ¡ï
СÓêÃÈÃÈ: ½ð±Ò+3, 3Q 2012-09-06 15:27:38
yyfeifei: »ØÌûÖö¥ 2012-09-07 11:07:04
lovibond: ½ð±Ò+2, ´úÌæÂ¥Ö÷·¢·Å 2012-09-07 11:11:07
н¨ Microsoft Word Îĵµ.doc(21KB)
http://kuai.xunlei.com/d/GASLQMRYFRVV?p=130497
5Â¥2012-09-06 14:20:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yyfeifei

ľ³æ (ÕýʽдÊÖ)

yyfeifei: »ØÌûÖö¥ 2012-09-07 11:06:41
ÒýÓûØÌû:
5Â¥: Originally posted by mushuai at 2012-09-06 14:20:17
н¨ Microsoft Word Îĵµ.doc(21KB)
http://kuai.xunlei.com/d/GASLQMRYFRVV?p=130497

ÄѵÀÖ»ÓÐÕýÏÒ¶¨ÀíÒ»Ìõ½â·¨£¬ÄÜ·ñ²ÉÓóõÖÐÆ½Ã漸ºÎµÄ֪ʶ½â£¿Ð»Ð»´óÏÀ£¬ÏȸøÁ½½ð±Ò
6Â¥2012-09-07 11:05:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yuan_math

Òø³æ (³õÈëÎÄ̳)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

30¶È£¬ÎÒÒ²ÊÇÓÃÕýÐþ¶¨ÀíÇó½âµÄ
ÎÒÏ£Íû¿´¼ûÆ´¾¡È«Á¦Ö®ºó½¾°ÁµÄº¹Ë®£¬³¤¾ÃŬÁ¦Ö®ºó³É¹¦µÄϲÔÃ×·Çó£¡
7Â¥2012-09-21 08:48:42
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lucianbull

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

Éè¡ÏPACΪx£¬¡ÏPABΪy£¬½¨Á¢Á½¸ö·½³Ì¾Í¿ÉÒÔÀ²£¡
8Â¥2012-09-21 15:58:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÄäÃû

Óû§×¢Ïú (ÎÄ̳¾«Ó¢)

±¾Ìû½öÂ¥Ö÷¿É¼û
9Â¥2012-09-22 09:49:02
ÒÑÔÄ   ÉêÇëÊýѧEPI   »Ø¸´´ËÂ¥   ±à¼­   ²é¿´ÎÒµÄÖ÷Ò³
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ yyfeifei µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ÕÅ·¼Ãú-Öйúũҵ´óѧ-»·¾³¹¤³Ìר˶-298 +3 ÊÖ»úÓû§ 2026-03-26 3/150 2026-03-27 21:39 by lbsjt
[¿¼ÑÐ] 070300Çóµ÷¼Á306·Ö +3 26ÒªÉϰ¶ 2026-03-27 3/150 2026-03-27 17:57 by arrow8852
[¿¼ÑÐ] 266Çóµ÷¼Á +11 ÑôÑôÍÛÈû 2026-03-27 12/600 2026-03-27 17:56 by yu221
[¿¼ÑÐ] 322Çóµ÷¼Á +4 ¾É… 2026-03-24 4/200 2026-03-27 15:38 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] 305Çóµ÷¼Á +5 ÍÛ¬¿¨¿â 2026-03-26 5/250 2026-03-27 14:01 by laoshidan
[¿¼ÑÐ] 085601 ²ÄÁϹ¤³Ì 313·Ö Çóµ÷¼Á +5 Ong3 2026-03-27 5/250 2026-03-27 12:24 by goldfish51
[¿¼ÑÐ] 292Çóµ÷¼Á +4 ÇóÇóÁËÊÕÏÂÎÒ°É£ 2026-03-26 4/200 2026-03-27 10:37 by zhshch
[¿¼ÑÐ] 342Çóµ÷¼Á +3 ¼ÓÓÍaÀîzs 2026-03-26 3/150 2026-03-27 00:29 by wxiongid
[¿¼ÑÐ] 333Çóµ÷¼Á +7 87639 2026-03-21 12/600 2026-03-26 22:08 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] Ò»Ö¾Ô¸ÏÃÃÅ´óѧ»¯Ñ§Ñ§Ë¶307Çóµ÷¼Á +8 y7czhao 2026-03-26 8/400 2026-03-26 19:51 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] ÉúÎïѧѧ˶£¬Ò»Ö¾Ô¸ºþÄÏ´óѧ£¬³õÊԳɼ¨338 +4 YYYYYNNNNN 2026-03-26 4/200 2026-03-26 19:00 by macy2011
[¿¼ÑÐ] 0856Çóµ÷¼Á +8 zhn03 2026-03-25 9/450 2026-03-26 13:42 by zzll406
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤328·Öµ÷¼Á +6 ¡££¬¡££¬¡££¬¡£i 2026-03-23 6/300 2026-03-25 22:30 by 418490947
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ´óѧ»¯Ñ§Ñ§Ë¶0703×Ü·Ö337Çóµ÷¼Á +7 niko- 2026-03-22 7/350 2026-03-25 20:14 by qingfeng258
[¿¼ÑÐ] 290·Öµ÷¼ÁÇóÖú +3 ¼ªÏéÖ¹Ö¹³Â 2026-03-25 3/150 2026-03-25 19:58 by barlinike
[¿¼ÑÐ] ¿¼ÑÐÒ»Ö¾Ô¸ËÕÖÝ´óѧ³õʼ315£¨Ó¢Ò»£©Çóµ÷¼Á +3 sbdksD 2026-03-24 4/200 2026-03-25 18:16 by xcjcqu
[¿¼ÑÐ] 318Çóµ÷¼Á +3 plumÀî×Ó 2026-03-23 3/150 2026-03-25 09:42 by ÎíÉ¢ºóÏàÓölc
[¿¼ÑÐ] ½ÓÊÕ2026˶ʿµ÷¼Á(ѧ˶+ר˶) +4 allen-yin 2026-03-23 6/300 2026-03-23 15:04 by Íô£¡£¿£¡
[¿¼ÑÐ] 280·ÖÇóµ÷¼Á Ò»Ö¾Ô¸085802 +4 PUMPT 2026-03-22 7/350 2026-03-22 22:13 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] Ò»Ö¾Ô¸Éî´ó£¬0703»¯Ñ§£¬×Ü·Ö302£¬Çóµ÷¼Á +4 ÆßÔÂ-ÆßÆß 2026-03-21 4/200 2026-03-21 18:20 by ѧԱ8dgXkO
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û