请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!)1 I4 Y I# K! n7 D6 e7 L) ]. w
7 t8 ~6 ?, M7 id [(a+bx)c ] /dx = -kc +s + s6 P% b& Y- @
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function? & @) _" X% t2 d' F3 F$ \6 n; {" e) | ?, [+ d2 e; g5 t
多谢了! ! m; w- U8 H( \! ^+ b + k9 b% C. E; _! ^ s; W z3 @[ 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 ; r4 y/ `# s& dd [(a+bx)c ] /dx = -kc +s' G* }8 d1 J4 r2 [% j6 ?
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function?% t6 `: f3 i1 ^ }
这道题难倒了我们全班的人,请赐教!) I1 i3 ^6 L, \* g- f
多谢!. k& r3 s, X8 N) h
6 @' ~: D( v# Q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 I1 ^* N3 V* B5 x' n; N
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[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]