| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎% |5 T& m' s) [; @
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(x - a) = x - a
! b. f; i; z  b- L(x - a) (x - b) = x^2 – ax – bx + ab
# F' [% [4 s5 W* i& i(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc4 ~3 g$ t( ?( H( A
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd8 x! x! S+ i7 R6 v$ W* v- Z6 w
如此種推，" U! c) D( R/ b2 Z
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

大大

點解你個問題好似有d問題
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Originally posted by Triangel at 2007-4-18 01:26 PM:$ K( H6 z, Z6 `
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:
- c! p/ b4 J4 s9 n$ B( m- X咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
* w$ \- g9 o) V* S/ @. U第一個答中有獎
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+ A9 ~' H! |3 N, O(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
! \+ `0 P9 I6 z4 s, C2 ~5 H: b似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

Triangel

Originally posted by littlenic at 2007-4-18 01:54 PM:8 j8 z3 i: k6 v
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(x-x)= 0 ，所以答案係0，is it?

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5 C# Z9 ~' A, \# D+ h/ U5 a0 jBingo~

waikong

我係學校個學生會單張見過
3 |; E% H- X" e- ~6 k) o諗左一陣先諗到

playbr2

我吾識答啊http://i72.photobucket.com/albums/i162/xcopy/Monkey/049.gif~~~ http://i72.photobucket.com/albums/i162/xcopy/Monkey/022.gif

karen0123

(哭)~~~~~其實我都知係0.........2 s6 A" L0 ~! P) [) H& a; k# K+ l

& n) Y% L0 j: ~0 o這條問題，貼落吹水版，名副其實
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8 Q& A( `& Y, k* h2 S  X[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]