请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!)0 i9 h( @$ z% |; t( ^$ N7 R, a; w
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d [(a+bx)c ] /dx = -kc +s , C0 M! A! X- }, _/ @where: only x and c are unknown, others are all known, requiire c = function of x, what is this function? 6 ?$ K, ` W. q& y0 c$ |# t& o, {: h. {! O: K8 ?
多谢了! 1 H6 p( b! N; O d! @ - O/ ?3 }7 l& ~- r: i[ 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 8 i( {7 i/ D' X' \1 C9 `d [(a+bx)c ] /dx = -kc +s$ k# S. F% H9 R( y
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function? ( v: B. v0 _! ?! p% Y这道题难倒了我们全班的人,请赐教!- ?6 Z: V+ G7 g Q
多谢!+ U4 G' k5 O& m4 r" ~0 `
: X: G( ?# q6 v: V1 e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!5 W4 Q7 o+ `* |* p9 \3 P
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[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]