请教大家一道微分题,多谢!(原题贴错,现纠正,多谢!) 0 `7 E7 r# |/ o4 j/ b K. m 9 e6 F' g- s5 ld [(a+bx)c ] /dx = -kc +s 3 K" d' B- l) b$ e$ ?- o6 e
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function?2 s8 T1 S @: F7 z) S
2 T1 R1 O3 g) g: l! d0 J9 G多谢了!! d2 R9 t& [3 U7 p V2 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 3 h% F9 ^+ P$ {0 g6 p xd [(a+bx)c ] /dx = -kc +s1 Q! W9 d) G$ \ h% [
where: only x and c are unknown, others are all known, requiire c = function of x, what is this function?% o; a6 v7 D% o: f- y) J: h. I
这道题难倒了我们全班的人,请赐教!8 y! D2 U& H. d1 X
多谢!8 D. j( X# p% |) N2 _* |) O
# n- O/ i3 F# v" B1 x+ \4 i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! 6 w/ X1 \" g0 e% Y/ r & ?) B# D6 t% ]2 }" {[ Last edited by 醉酒当歌 on 2005-4-4 at 11:32 AM ]