请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!) * t9 [3 w; \6 X 3 C/ z$ S- y( m( H% rd [(a+bx)c ] /dx = -kc +s 8 M0 ?3 b3 X1 j- Owhere: only x and c are unknown, others are all known, requiire c = function of x, what is this function? 9 p6 V* v+ @2 ~( L% L% E0 b( Z' j 5 F- N- S# w$ P, k多谢了!% a* A( i5 j4 C
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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& v3 Y7 [/ E) P
d [(a+bx)c ] /dx = -kc +s 9 `; o2 W/ z# h, b# D0 gwhere: only x and c are unknown, others are all known, requiire c = function of x, what is this function?* `# L) w1 o$ Q+ f% G# K; V; e& r* a
这道题难倒了我们全班的人,请赐教! " ?- j! s2 Z7 z) T9 @; S" e多谢!4 i" B! r. |1 ]) c$ X5 `
2 `% x7 \' i5 m- T+ Y) s( N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! 9 x! S& a6 g1 B" `% Q0 o& B9 M$ T) _0 l# i
[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]