²é¿´: 2237  |  »Ø¸´: 12
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

Àä±ùhh

ľ³æ (ÕýʽдÊÖ)

[ÇóÖú] Çë½Ì¹ØÓÚsinhxº¯ÊýÎÊÌâ ÒÑÓÐ2È˲ÎÓë

Èç¹ûÒÑÖª£¬sinhx=a£¬ÈçºÎÇóµÃxµÄֵĨ

лл£¡
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

Àä±ùhh

ľ³æ (ÕýʽдÊÖ)

Ëͺ컨һ¶ä
ÒýÓûØÌû:
6Â¥: Originally posted by peterflyer at 2015-03-02 08:30:20
Sinhx=1/2*=a
ÕûÀíºó¿ÉµÃ£º
^2-2*a*e^x-1=0
e^x={2*a¡ÀSqrt}/2=a¡ÀSqrt
¿¼Âǵ½xΪʵÊýʱ£¬e^xÓÀÔ¶´óÓÚÁ㣬Òò´ËÉáÈ¥¸ººÅµÄÖµ£¬Ö»È¡ÕýºÅµÄÄǸöÖµ£¬ÓУº
e^x=a+Sqrt
x=Ln{a+Sqrt}...

ºÃµÄÄØ£¬·Ç³£¸Ðл£¡
8Â¥2015-03-02 09:15:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 13 ¸ö»Ø´ð

feixiaolin

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷

²éÊýѧÓñí
Ó÷´º¯Êý¼ÆËã

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
2Â¥2015-03-01 22:21:53
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÖÕ̫֮µ¶¡ªÏþ

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

Êýѧ°®ºÃÕß

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Àä±ùhh: ½ð±Ò+4 2015-03-01 23:33:09
¸ù¾ÝË«ÇúÕýÏÒº¯ÊýµÄ¶¨Ò壺sinhx=[e^x-e^(-x)]/2¡£
Ô­·½³Ì±äΪ£º[e^x-e^(-x)]/2=a£¬
»òÕßд³É£ºe^(2x)-2a*(e^x)-1=0¡£
Áît=e^x£¬µÃµ½¹ØÓÚtµÄÒ»Ôª¶þ´Î·½³Ì£ºt^2-2at-1=0¡£
½ÓÏÂÀ´ÎÊÌâ¾Í²»Äѽâ¾öÁË¡£
PreferenceforMathematics
3Â¥2015-03-01 23:16:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Àä±ùhh

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by feixiaolin at 2015-03-01 22:21:53
²éÊýѧÓñí
Ó÷´º¯Êý¼ÆËã

ÓÐarcsinhxº¯ÊýÂð
4Â¥2015-03-01 23:32:25
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 335Çóµ÷¼Á +4 yuyuÓî 2026-03-23 5/250 2026-03-23 23:49 by Txy@872106
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©»¯¹¤´óѧ 070300 ѧ˶ 336·Ö Çóµ÷¼Á +7 vvÃÔ 2026-03-22 7/350 2026-03-23 23:44 by Txy@872106
[¿¼ÑÐ] 291 Çóµ÷¼Á +4 »¯¹¤2026½ì±ÏÒµÉ 2026-03-21 5/250 2026-03-23 16:46 by »¯¹¤2026½ì±ÏÒµÉ
[¿¼ÑÐ] 293Çóµ÷¼Á +3 ÌÎÌÎWjt 2026-03-22 5/250 2026-03-22 22:21 by jiangpengfei
[¿¼ÑÐ] 324Çóµ÷¼Á +6 luckyѽѽѽѼ 2026-03-20 6/300 2026-03-22 16:01 by ColorlessPI
[¿¼ÑÐ] 275Çóµ÷¼Á +6 shansx 2026-03-22 8/400 2026-03-22 15:27 by barlinike
[¿¼ÑÐ] ²ÄÁÏѧ˶301·ÖÇóµ÷¼Á +7 Liyouyumairs 2026-03-21 7/350 2026-03-21 22:31 by peike
[¿¼ÑÐ] ³õÊÔ 317 +7 °ëÀ­Ô±û 2026-03-20 7/350 2026-03-21 22:26 by peike
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄÏ´ó£¬0703»¯Ñ§£¬·ÖÊý336£¬Çóµ÷¼Á +3 ÊÕµ½VS 2026-03-21 3/150 2026-03-21 18:42 by ѧԱ8dgXkO
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á +4 ÄÝÄÝninicgb 2026-03-21 4/200 2026-03-21 18:39 by ѧԱ8dgXkO
[¿¼ÑÐ] Çóµ÷¼Á +3 13341 2026-03-20 3/150 2026-03-21 18:28 by ѧԱ8dgXkO
[¿¼ÑÐ] 336Çóµ÷¼Á +5 rmc8866 2026-03-21 5/250 2026-03-21 17:24 by ѧԱ8dgXkO
[¿¼ÑÐ] 266Çóµ÷¼Á +3 ÍÛºôºßºôºß 2026-03-20 3/150 2026-03-21 16:46 by barlinike
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖпƼ¼´óѧ£¬080502£¬354·ÖÇóµ÷¼Á +5 ÊØºòϦÑôCF 2026-03-18 5/250 2026-03-21 01:06 by JourneyLucky
[¿¼ÑÐ] 296Çóµ÷¼Á +6 www_q 2026-03-18 10/500 2026-03-20 23:56 by JourneyLucky
[¿¼ÑÐ] 0817 »¯Ñ§¹¤³Ì 299·ÖÇóµ÷¼Á ÓпÆÑо­Àú ÓжþÇøÎÄÕ +22 rare12345 2026-03-18 22/1100 2026-03-20 20:39 by zhukairuo
[¿¼ÑÐ] Ò»Ö¾Ô¸ ÄϾ©º½¿Õº½Ìì´óѧ´óѧ £¬080500²ÄÁÏ¿ÆÑ§Ó빤³Ìѧ˶ +5 @taotao 2026-03-20 5/250 2026-03-20 20:16 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏ¿¼Ñе÷¼Á +3 xwt¡£ 2026-03-19 3/150 2026-03-19 11:22 by wãåÑôw
[¿¼ÑÐ] ÊÕ¸´ÊÔµ÷¼ÁÉú +4 ÓêºóÇïºÉ 2026-03-18 4/200 2026-03-18 14:16 by elevennnne
[˶²©¼ÒÔ°] ºþ±±¹¤Òµ´óѧ ÉúÃü¿ÆÑ§Ó뽡¿µÑ§Ôº-¿ÎÌâ×éÕÐÊÕ2026¼¶Ê³Æ·/ÉúÎï·½Ïò˶ʿ +3 1ϲ´º8 2026-03-17 5/250 2026-03-17 17:18 by ber´¨cool×Ó
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û