| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎! o4 [+ X1 G( D) F
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(x - a) = x - a
! L. n& E: L4 o4 m- L(x - a) (x - b) = x^2 – ax – bx + ab  R* j) f& k/ |) {
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc1 I- J3 J0 G. q" W
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd. f# d5 W' Q# s
如此種推，6 D" \9 j; J6 b4 e* Z5 X# k" w, L
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???4 a4 C# a; K: ?. B1 i0 `6 }

! @2 F$ n* v4 s3 ?( J) i1 i7 |[ 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:6 P5 M; I3 a3 y9 a  Y
(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:9 W. i9 w& }. j2 ]/ T- d
咁難既=.="
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) A3 \! T# v) n$ e+ Y1 T. m$ |[ 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:+ ?( P* B! F# k( s% q5 |
第一個答中有獎& Q( D4 F1 w! F) _/ Z2 O& R2 G# {

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:" U# [7 b" Y8 p# I: t
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. w+ O( i$ K0 V% m(x-x)= 0 ，所以答案係0，is it?

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! o* s" j+ s& D& l2 f* D& |3 {' n唔似a.math題0 i9 H1 r5 z2 S# w# \" p- v
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:) M, C* u$ b! a: w9 o2 X

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(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
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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.......... c" W7 k3 Z+ j4 ?
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這條問題，貼落吹水版，名副其實
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! N; Q/ g9 T/ i2 G& h[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]