请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!)7 I* T! E2 S% J/ d; u" D
9 m# c- j$ E$ @3 [d [(a+bx)c ] /dx = -kc +s 1 N3 m N& V3 v. M6 W8 twhere: only x and c are unknown, others are all known, requiire c = function of x, what is this function?! t9 m, @( d! ^* e4 h
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多谢了!' O! P9 p. u {5 |/ \+ ^
- C) L8 Y, l+ F) r[ 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 4 h8 Z0 w' |* o/ e/ [" ~d [(a+bx)c ] /dx = -kc +s7 k' {: w9 r2 J: I
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function?3 a; i. v! K$ A, e
这道题难倒了我们全班的人,请赐教!8 ]2 a! C4 p8 k4 n ^( y; V
多谢! 2 @) V& i5 O/ K! w4 b7 z% e) o `" q1 x' C
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! $ i4 [+ f* ^3 S- ?5 {: f$ K- [2 n E* M6 A
[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]