| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a+ y5 P7 a4 }( x9 Z
(x - a) (x - b) = x^2 – ax – bx + ab2 l* q9 }/ a3 g4 @2 ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc* m0 Q+ y$ P% q; F  j5 s
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
* m; j0 k$ v. t7 f( l如此種推，
8 U7 G+ ]3 q+ G% l) c6 G/ `: q3 B(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???3 b% m0 H) p9 h) T$ @9 c+ h

; A: F) b" y, {[ 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& U9 s% }  u6 N4 O$ X  B

Originally posted by Triangel at 2007-4-18 01:26 PM:, J1 t7 }% M4 x
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc" ~& H3 C3 H0 _* 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:' l7 `" X4 _' s+ f: X* }( l
咁難既=.="+ [* O4 N8 D7 }8 m# ^
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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8 U" S4 T8 O# N, k! ^Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 K3 [1 @7 ]- j$ \$ e第一個答中有獎0 f  G5 ?/ }1 ]* k' P, u

! I0 W' G4 A# s5 u+ n(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:* D' n: K% P) t! O' l1 S6 C
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/ c( j8 h9 b2 `# f(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題' i3 {. w. S+ r2 Q& G- Z' D- U8 a2 H
似IQ題=.=. z) W3 O$ @0 {& I
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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 c! a2 |, F# e1 q" 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
7 Q6 I$ c; z0 S: M3 c% 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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這條問題，貼落吹水版，名副其實- ~0 i3 P4 v% }( V, M$ E- f

, P( q5 \6 s8 ^. z+ B1 ?( B[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]