| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
1 {7 o" n( C# A% [4 A(x - a) (x - b) = x^2 – ax – bx + ab
: d: ~' }' }9 [2 P  Z1 P(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc8 J  c4 y: ]6 o1 H& [' f
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
) o0 i- d8 c  v5 b' q, i, ~1 c如此種推，
5 P% p, z7 o) c# H8 t(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 l0 D# R) z$ E1 @  _. ?
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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6 a9 }1 g8 q- K% _

Originally posted by Triangel at 2007-4-18 01:26 PM:( q% @+ L+ e: F2 M2 q& S7 z
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc* ?" S% P* ?  N3 X) l9 c5 d* @
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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:) n' y. S8 I8 m) _) P5 O
咁難既=.="- l2 X) V0 _. F, ~# u7 D% l6 z
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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. ~0 s0 a8 V% V& H5 e2 q( \5 tThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
" B" |* ]3 j; q3 q& @% s& i第一個答中有獎! A; ?6 }+ ^& I5 D
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(x - ...

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) a  x" q! n" w" {. l(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:, f( j/ S, _+ P  }" i  A

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(x-x)= 0 ，所以答案係0，is it?

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. G% |( D# V& ?6 i1 W唔似a.math題
# p3 i4 n3 U1 n0 b: k' a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:2 l: a6 ~& m% p9 |2 F8 \
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(x-x)= 0 ，所以答案係0，is it?

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) C: t3 Y5 ?8 _Bingo~

waikong

我係學校個學生會單張見過
* P1 H1 J2 h& b9 `$ s+ i* V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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+ e- c% y. Y  |# Q這條問題，貼落吹水版，名副其實
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+ L9 R- l4 E/ z. U' w: S' a[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]