请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!) ) Q# h' Z8 |( ^; Y- U9 V% R4 M ! y, F- }4 e; g& I Y- Rd [(a+bx)c ] /dx = -kc +s % j6 M: _7 ~( E7 G* A
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function? " B- _2 B* d# i: u$ f4 c 7 O4 I7 v4 k; u多谢了! / a% u7 o, b. I. H / K% d! Z, [/ @. J[ 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 + h/ P( q: P* S: F) E; [d [(a+bx)c ] /dx = -kc +s1 B" J. C0 F6 g- V
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function? / w7 y. U9 a- z! W/ k- p% k: t这道题难倒了我们全班的人,请赐教!0 W! v+ O( T" @+ K) C) X% e5 Q
多谢! ; G3 a" e) P! h" z1 v0 K1 U9 Z1 h3 f6 ~" X* {
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!: |+ ?" H% V( t7 w
' |. S) r; P' H6 V[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]