| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
. ?# K  U2 T$ a. O- R(x - a) (x - b) = x^2 – ax – bx + ab
7 Z6 K! t& {2 E/ y; r6 k' F(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& W' w) [: w# {) B9 e
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd4 [2 Q) K, d1 D" }, c- s7 j
如此種推，
- s7 _2 w5 S' N% }  x6 t! N: a(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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
2 ~( b8 N' _4 I. r4 j(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc+ Q3 r4 S: v0 J. e& [
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5 o0 L' ~/ \+ Q* h[ 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:1 e5 O+ x& x: \6 o1 }5 l
咁難既=.="5 D; c$ Q& e2 a0 S$ K; y3 ]

7 y0 U! B9 K. F+ M3 M[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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/ E2 @; @, O7 x" i) uThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
% _- {1 }: [6 I) G* X9 H% T第一個答中有獎/ R- n, f6 `5 P& O  g( S/ m
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(x - ...

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' S: j. R0 K! ^4 Q- z. n) x9 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:3 d; ]& {5 b$ w( r3 L4 x- |

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0 m& @: k3 E+ F8 V8 B6 W( s(x-x)= 0 ，所以答案係0，is it?

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/ N' {; R) c$ o6 {/ e# o' e+ ~唔似a.math題  t6 Z3 j7 \% W
似IQ題=.=$ g) _  c1 h; G/ h9 t) T& c
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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:! y0 J  O7 \) C9 U5 e- g; g

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(x-x)= 0 ，所以答案係0，is it?

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2 r! i. o3 p0 N$ W+ W( U6 j5 g' l9 B7 ]0 WBingo~

waikong

我係學校個學生會單張見過- U  Z& Y9 h0 k* T' X
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.........
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這條問題，貼落吹水版，名副其實1 @4 G9 I# L8 j# i; o6 C3 y
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]