请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!) * q3 r, X: K. Z. T5 }8 B4 T2 k- L) r9 S8 D' R
d [(a+bx)c ] /dx = -kc +s % E" o( C( n) @4 p, L* ?
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function?6 q( o; V" H: ^' g; |
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多谢了!2 a2 q) |' v$ Q( T2 l
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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 % I1 U5 L! {1 W. @3 Yd [(a+bx)c ] /dx = -kc +s0 S% E+ f$ @; T' ]3 m
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function? 2 e# y3 J2 G' H0 S& u: v这道题难倒了我们全班的人,请赐教! 3 C2 |- L* X4 p多谢!9 w( W( E9 X _; s" |
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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! ) a5 X7 c3 H6 c7 e9 r) } - G) O2 s) J$ }! n[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]