| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎3 }0 L' H! ?4 g0 q
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(x - a) = x - a4 Z) Y7 ~% u9 ]$ C- l: g. J( w7 u# A
(x - a) (x - b) = x^2 – ax – bx + ab
7 I) n) r( o0 N' S- A: G7 i' L' q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc1 y! ~1 n4 E% Q& }- O; a/ \8 \/ I# s
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
: f0 {& q% T) T0 N( u如此種推，
) Q8 p) E7 B$ W! L1 F! l(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???& E: H8 W( |- V" B
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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:3 {" A* h4 `; u. g
(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:0 `% W& o7 W+ }. y6 e3 r+ M/ i1 N
咁難既=.="7 J; l# T8 u; K. i$ `
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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:
9 }- |( Z* Z7 W第一個答中有獎3 J6 ^! v( s0 ]7 Q0 c6 K

2 D2 Y% `" S: [" h, V(x - ...

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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:
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1 j7 c2 }; [, U2 ~; S1 G  z(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
7 U1 E) I7 l% U2 H+ R. `( L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:, h& j2 z, A! x! l

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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' A+ h: i4 X3 k! R( i
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.........! K* L/ y, s' F6 b. |
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這條問題，貼落吹水版，名副其實% E& Y' F* Q' O2 c+ _& k% z* I" N
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]