| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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9 [) a8 z+ L3 b; _# h2 d; X(x - a) = x - a* P! O. ]$ J: W
(x - a) (x - b) = x^2 – ax – bx + ab& O  |7 R2 e; R% n" o8 C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
7 H' o# Q- M$ @# l& {0 s" b+ J(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
6 c6 I; n2 N' p8 S如此種推，
/ c9 f+ w3 P" F& f) M) O(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???) n! K' s: e' P6 D
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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# F( U$ N9 l: ~2 r2 B+ q0 o( Q

Originally posted by Triangel at 2007-4-18 01:26 PM:
: T8 z! r4 n) R3 T9 b6 ](x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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+ ^+ W# }$ J4 A; V2 b

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% U& ]- X- V& b$ S( k# n. k# m[ 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:/ p$ Z) L" N% g) V
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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, e3 V0 b) H1 H- t. iThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 c9 z4 a2 T8 H. g4 b$ D5 _第一個答中有獎
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(x - ...

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& p2 L& \; R) B5 u(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:# w# n" v7 B- h! t

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(x-x)= 0 ，所以答案係0，is it?

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* V2 D$ J; F: O0 [: R% i唔似a.math題/ @8 z! v7 D$ _
似IQ題=.=+ @6 m( [9 L3 k: Y

: |+ Q  A' @9 V( y& B[ 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:1 V1 C+ e7 ]8 y6 @5 B6 \

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5 d. _1 r( v/ [4 y# ^5 u(x-x)= 0 ，所以答案係0，is it?

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' D1 _! J4 I; j; G( F, u3 ?) s! aBingo~

waikong

我係學校個學生會單張見過
3 O7 t! V9 L0 |5 A0 O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........." [4 @. Z4 K( l% f/ k' T
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這條問題，貼落吹水版，名副其實
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8 {  G- D& O$ F[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]