| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a$ e: q" I+ \, T  c- R0 M, G
(x - a) (x - b) = x^2 – ax – bx + ab
* q, I) [# c" |- Y$ J' m(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc) m, |5 r! h1 s2 \1 l6 \& F
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
8 M* A1 |! y' H4 g- h7 c如此種推，
; b* T, G6 S4 {4 v3 ?7 d(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. }# _/ G0 f+ u0 f2 g$ x: z  h9 \

Originally posted by Triangel at 2007-4-18 01:26 PM:' ]& S* \% X8 b' ~% i
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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- M; P* \, }% c/ E' ~/ Y$ _4 G6 R[ 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:
/ _$ _0 z. e4 u! e2 [0 q咁難既=.="
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- E" \9 O( E- `0 H& C' y[ 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:
, I) k  t* C3 J1 d3 G6 m7 Q第一個答中有獎6 @3 G6 n; ~7 i

+ Z9 q8 @/ m! j% t5 k! m& \( w; c(x - ...

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+ u3 n& a5 j3 i( f5 N+ n8 `8 G' [* `(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:8 s4 W  `# e9 v' ]: B, J- h

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9 \! m8 ?% U8 F" H(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題1 v- N* D) Q5 e  V
似IQ題=.=1 }) y; I  Y* ?5 `2 N

4 D# P" M6 {; K4 ?" f. N, A[ 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:- i1 _3 D& E3 d, X7 g( D* M1 B& F

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$ r5 U3 G1 Y3 k7 r, ^(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過
) A+ N% R9 \, u  y. I: w" j) W9 m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.........6 m% f( d4 ?8 w: K; R( `; R  W5 |

  \+ B* D; j) {! m8 D$ T這條問題，貼落吹水版，名副其實
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* d* T! T/ U3 N( ~9 b4 ]+ r[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]