请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!) 4 m) \( a+ ?+ e2 d2 K& x7 G 2 X0 j1 ?/ K$ Z) y* s9 jd [(a+bx)c ] /dx = -kc +s * c; D) T" N! m9 q6 d) q; Pwhere: only x and c are unknown, others are all known, requiire c = function of x, what is this function?* n1 m& J$ L+ o& f6 U( I$ G
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多谢了! " Y0 R+ a, t2 p7 J+ \8 k+ u! Q* h+ y. `5 ^; x# y
[ Last edited by 醉酒当歌 on 2005-4-4 at 11:34 AM ]
对不起,原题贴错了,怪不得这么多高手进来了。原题应该是 7 f" P k5 f% _4 y6 A) L9 l hd [(a+bx)c ] /dx = -kc +s ' k! K8 X/ }3 R( z i- `/ a" Y1 ywhere: only x and c are unknown, others are all known, requiire c = function of x, what is this function?! Z; w& T0 o& d0 w0 ]
这道题难倒了我们全班的人,请赐教! 0 S; W) g# G6 V3 B' k$ G: `多谢! 8 u. H( n# r+ I8 \) k; H, y9 g3 n$ N$ j% F7 ?
要求用x的函数来表达c.也就是等式右边不能包含c. 即 c = x 的函数, 所求就是这个函数。多谢! + t" g2 k; A! N" Q! _. B3 |( l+ p$ \- _9 b& ?3 |( R; _
[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]