| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a7 F. \2 G0 n/ o; f9 R2 P' e8 I
(x - a) (x - b) = x^2 – ax – bx + ab- J" R8 k1 L; V# H, D9 j6 y- l
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc' I- v4 Z4 \: q  s/ i5 J
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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9 V/ W: z# C. n(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???3 E6 ?. y% }( I$ w/ i$ w+ d" E
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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+ p  C9 f8 b: f2 a- b' F

Originally posted by Triangel at 2007-4-18 01:26 PM:9 _, R+ d: t8 u% \3 N8 m% {
(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:/ \& ]% E" x3 L) y4 z# M. n  L2 g
咁難既=.="2 v" E/ L: E0 S& }: B8 O' f

1 S0 D% q0 h! s( _[ 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:/ C8 V" O* m0 Q- e" z* s
第一個答中有獎
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(x - ...

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* `( j: p& A1 f" ?8 j(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:' j7 y6 I7 a5 g' F$ t% B
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& w$ l# N$ _! g4 D0 d4 d(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題  ]6 [! P/ F7 p% W8 y3 F6 G
似IQ題=.=
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5 q7 O0 ]5 X& `6 b) ?) Y[ 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:) u/ q4 f( V! h1 u# ]

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: \3 _7 }+ e7 N2 q' _3 m1 X( `! V! ~(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# n2 s0 A4 m5 y$ q) U( U
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.........& T- s5 ~  c& z, F9 A
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這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]