| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎' I. t7 b* {8 R% |1 G. {$ B% C; X. ^
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(x - a) = x - a2 n1 {+ ^: C3 j" N
(x - a) (x - b) = x^2 – ax – bx + ab. S+ M6 J9 Y. j9 D
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 V7 e: m0 Z2 {+ D/ H8 c
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd& i, H" O; i! p; `" T" u( T0 x
如此種推，+ d2 Z* x, F1 Y. w1 V
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???1 }" d' w/ J+ }& A0 [7 ~3 A' V
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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:
( U, q5 \; e7 V3 \5 `2 `. E. w8 v+ X(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:/ ^+ y- E: k, b9 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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  }- A- v  A3 e# w: AThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
: X/ X) y& _4 [5 Q9 D  s9 x; w第一個答中有獎6 W# W' S4 t: x7 ^$ l  U9 e
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(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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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題9 i6 @" s8 A, B; W: g
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:
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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
1 T6 v- u1 K. E; w2 q* m& e: w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........., b9 N& B+ J) M, Z6 ~

: N0 l7 n" ?2 g2 u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 ]