|
        
- 帖子
- 24445
- 精華
- 3
- 威望
- 10006
- 魅力
- 459
- 讚好
- 0
- 性別
- 女
|
1#
發表於 2007-4-18 01:26 PM
| 只看該作者
| TriTri | A-Math 加分題 |
第一個答中有獎
# D% M5 T, R4 A) J! N9 W. i+ |* j2 l6 M2 X' m# L( y
(x - a) = x - a3 _+ ?+ x" i9 V" }% M) X; x
(x - a) (x - b) = x^2 – ax – bx + ab
+ t0 }% O3 [7 [, k, l(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc% f+ O5 Q6 { ]3 ?3 F. Y( U- G! z. s
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
. {, {: g8 p2 a, D如此種推,! }6 s8 f, ?( O- k5 p+ ?
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
2 Z9 S0 g% G: O( k/ {$ }/ |( }; C4 {2 W8 G; o1 X4 h6 F; n$ B
[ Last edited by Triangel on 2007-4-18 at 01:52 PM ] |
|