请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!), M, i1 d+ X' }! `/ M7 n$ u
* l7 K$ P) A$ j! \d [(a+bx)c ] /dx = -kc +s . H1 B7 Q$ { D
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function?3 Z/ j$ l% n7 t ~* H1 v
1 U' ~2 e8 o& k多谢了!% u1 ^; M: w0 `6 }+ L) d3 B
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[ 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9 o K3 x* K" Z6 Y2 b
d [(a+bx)c ] /dx = -kc +s : [9 x7 R" n x$ m2 D* awhere: only x and c are unknown, others are all known, requiire c = function of x, what is this function? 1 P' I8 l# {4 h% g) b9 q; F' W这道题难倒了我们全班的人,请赐教!- c; |5 t9 I( @& \6 z
多谢! 5 A8 a; d' }! I, m 0 S+ G, h+ l9 ^8 I/ D. ~5 B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!( A) J* D) f9 x3 I' v- u- p. M" b
; L! n6 o A0 o5 ]- }! u# l$ \1 C[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]