| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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9 x3 z! U7 P) e7 L' R(x - a) = x - a' x0 n4 D1 N: p1 X
(x - a) (x - b) = x^2 – ax – bx + ab& }8 J8 K/ R4 |) L8 C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc# i2 B- g+ s( g6 V* z9 u. x
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
. h0 \- O& [3 h5 c2 Y如此種推，/ l) w5 [/ ?! I4 y5 s
(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" W0 X- N6 [4 {  o! ?8 M2 K& {

Originally posted by Triangel at 2007-4-18 01:26 PM:( z' [" A5 d6 J2 |) g* X  E
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc) ^1 p& F7 A9 z# ~
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# O, y( ]; l; H6 W! H  `[ 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:
' L1 p; p0 \  }& I咁難既=.="  z+ O! J' N% R& O8 ~. K

; m, ?3 s& s  [! {0 R[ 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:# y% W7 }0 h4 ]) n8 [! D
第一個答中有獎
& L, n: _! x2 ?
/ z/ g2 c* d2 M: I- E9 `(x - ...

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- I7 W  I( _+ N# ^(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:& H7 Y! o$ b9 ~0 P- c
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
! G& i: ^. \) q似IQ題=.=+ o6 T. D' m# h' o

) o$ m! H3 q1 P! g# |3 l6 _[ 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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: G( o- }4 B+ m( @/ r: z" A(x-x)= 0 ，所以答案係0，is it?

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$ @, V8 F6 N" b( K0 Q  rBingo~

waikong

我係學校個學生會單張見過
: b& N! e! H5 Y2 _& N- P+ N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.........& g* O; ], V9 `" i, v+ C; K* C

5 @; d! }0 ?- i0 g5 Q這條問題，貼落吹水版，名副其實) G, N, @2 E( h

0 W1 _4 `- `+ V7 Z# s' S[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]