| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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8 r& m0 P9 y' o(x - a) = x - a. D# N2 [! K! o# b( h$ K
(x - a) (x - b) = x^2 – ax – bx + ab
2 E/ ?, v+ e+ W6 @' q5 m(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc5 L. [; l# K) u! D8 }5 `8 y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd4 t0 w5 `% R2 Y- a0 u9 ]3 k1 K
如此種推，
9 m8 e3 |( R5 |# F9 S8 z7 f(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" n. C! x: D% f9 I4 }" X( z$ k

Originally posted by Triangel at 2007-4-18 01:26 PM:
4 o8 H3 [( p% }% f8 E4 i(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc9 l0 M, c: Q! s( t4 _
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& [  y: S+ a1 T5 @8 T[ 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:. u2 R0 I( X, T1 A  y
咁難既=.="9 q& m" o; ~/ p/ L9 e3 J. e
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[ 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:# E/ z! W3 Z3 z4 b( [$ e
第一個答中有獎
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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:4 h0 Q1 c" k0 S4 `7 }2 H5 t9 V
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" Z- o, P+ a. E(x-x)= 0 ，所以答案係0，is it?

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5 K; z- [6 V6 x唔似a.math題7 G& N' r; S* A; M: Z! U* r7 C" D
似IQ題=.=) ?, t% k! C3 Y5 Y% K6 }
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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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waikong

我係學校個學生會單張見過
! |5 Y6 s. X  y' H8 S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.........; B! J# {$ H$ a* [! Y

4 j$ O9 T/ p) Q3 e# m. R- i5 g- o這條問題，貼落吹水版，名副其實+ x/ p; L6 T* w* R* O
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]