| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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! ]  p7 Y  m* u* j" k& q(x - a) = x - a' d. N% @8 H, A* @% _
(x - a) (x - b) = x^2 – ax – bx + ab5 F7 G. e# \/ ?: i2 H
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc8 t/ e  F5 p6 M! C+ x$ c
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
# x" z9 \/ D" h. ~如此種推，# s/ e' T$ a5 N
(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- u6 U: d; `; Z" s0 f

Originally posted by Triangel at 2007-4-18 01:26 PM:( ^5 K$ H2 y2 J1 P( k$ w7 y+ I
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc3 b8 S9 e6 }; v4 u  m

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6 S( U9 q# w: @8 v# Y4 z- p+ O[ 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:/ ?9 O6 l+ H6 u' f: }$ i
咁難既=.="* {& Z4 }- M0 ^9 a  `5 h1 y% W* R
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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:3 l; ~) L' [0 }; j7 M5 |" v* S0 ?
第一個答中有獎
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(x - ...

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' n2 I: L& {  R$ F8 X(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:$ P( z' W& t; L& A4 ]
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(x-x)= 0 ，所以答案係0，is it?

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! V- h/ f! ^# e唔似a.math題- F) `2 z" D2 o+ [& {
似IQ題=.=- G1 n1 {/ J  I# w6 c% u
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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:
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1 _8 K) K' v+ A# X(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
6 G1 }" G  r; H5 f, N3 Q% j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.........
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  `! h2 S$ a% \3 Q這條問題，貼落吹水版，名副其實* L. p, `+ I" I3 w2 k
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]