|
        
- 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
( }3 b; Y+ n$ Y7 N* E2 L2 M
0 p8 a! v( ~+ G! N- l b, n(x - a) = x - a
+ W$ U3 Q8 V' a4 {+ N/ x6 E(x - a) (x - b) = x^2 – ax – bx + ab% Q/ y2 h# m$ O8 v4 T, Z' _- \
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc6 {; J# S, l' n- r6 Z }( V
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
! e; y0 n; v5 ?! a4 W \2 F如此種推,. J+ U6 u% a+ G) h. R- F+ s
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
) G$ ]) o; V! U |9 N
8 x" g3 r# D* D- e$ `: Z( i[ Last edited by Triangel on 2007-4-18 at 01:52 PM ] |
|