请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!) 9 b+ |! S$ j8 f) w9 s' L r$ C) z/ v' P7 h
d [(a+bx)c ] /dx = -kc +s ; w3 w" u- G1 {# K4 X y: P: V A4 Uwhere: only x and c are unknown, others are all known, requiire c = function of x, what is this function?5 W( C3 y$ |( [2 A# f
) M/ W$ E% }: S多谢了! ' r2 g6 |/ v! w. z7 j8 S% |" b 8 X* P$ H) D) J4 D[ 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6 n( R+ Z9 i' Y0 {9 V9 H' P
d [(a+bx)c ] /dx = -kc +s; q4 ^5 f! p: d9 w6 u6 z# N# g
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function?! O# a0 G9 _; o" P1 b. @
这道题难倒了我们全班的人,请赐教! : S9 \0 M6 ^; Z3 N4 q4 W( G多谢! $ Z7 Q3 {; j- E6 ~ 5 g% @+ k! V# u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!2 _( \3 e6 I8 w% h
7 S5 {+ |6 {+ J5 o[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]