| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) m1 S$ s5 w5 U6 E: M9 H
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(x - a) = x - a
" k; l8 D7 n# u0 T(x - a) (x - b) = x^2 – ax – bx + ab
8 X: |$ ^! k! g. f7 M6 C* S(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: z' J& z: f( i' Q! D+ i8 I; c
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd) e1 M0 Z; C' Q- g7 N
如此種推，+ {, ]0 t2 A7 A- c5 Q& m
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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$ o, k) N9 x, a+ p9 Q3 c[ 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% F1 M1 G9 i; X( Y. I; F

Originally posted by Triangel at 2007-4-18 01:26 PM:) q' h! {' S/ q; O# d) y9 L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc4 U' H/ Y4 H) q# g
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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:
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+ V) s2 R- n9 @. ?2 B$ J[ 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:5 c7 q* b  S" O9 l7 l
第一個答中有獎
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(x - ...

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3 {- g$ q# ]4 ?7 f7 m3 H% [' y1 R* Q(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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6 L$ ^9 T1 I; N( z唔似a.math題) F1 }2 K; B! n1 J$ |( ^
似IQ題=.=, C# P7 N8 J. z) j
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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:) j+ q+ V+ E3 m$ w! M0 g) h* ]
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# f$ w% S6 k- F5 F  V' X(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
: y" D' c9 r' L# ~, 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........." w- h( U3 x# T1 @5 c

* ~; P0 q4 [. k& Q3 E這條問題，貼落吹水版，名副其實
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/ l: n* \, H, A" x[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]