| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎& A- I7 B& ?2 \4 q) k% }

& {7 b: D$ w2 x, ?# j6 \6 t9 q  @(x - a) = x - a0 T( ?% j% j; d& U) [
(x - a) (x - b) = x^2 – ax – bx + ab+ ?! y3 [8 r' p& P$ E
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 L  l1 j& I2 g* q
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd1 W( W9 Q8 G- l
如此種推，
' i5 Y+ G2 r9 q4 g$ \( a1 h( 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6 ^* D& L) l' x

Originally posted by Triangel at 2007-4-18 01:26 PM:
/ @* Q4 Y5 I9 ~, _7 ~(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc$ E/ ]6 s! f  l+ @+ [( ?6 p$ F
6 ]) r+ f4 E9 c) O4 v6 r

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* T% u, O6 s6 U3 H9 p0 r[ 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:
8 W  @4 s+ {- O$ k; C/ O9 s# f咁難既=.="; j3 ~4 Q' X4 V- A
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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:$ |$ ?! Y" }$ n, ~3 ^
第一個答中有獎
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' L1 C8 |% O; h' R+ G(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:. Z! Z! @- N" ]) @

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(x-x)= 0 ，所以答案係0，is it?

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. e0 _3 _, V; v5 m3 f唔似a.math題
! w2 ]$ ?: |0 j0 f/ L, H似IQ題=.=) q, \) Z; D4 b" I0 B8 F1 f9 R* O
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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:3 L# r6 m0 O* x' ]% ^

& Y( X1 @" W8 [
4 e/ v8 a7 A0 O(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' R4 q- Q3 H% r% p) K
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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# \, F4 O/ N  t  z這條問題，貼落吹水版，名副其實1 J% U- J! |. Y$ {0 l, t

, H: V% ?4 e  s8 I; H% [) t[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]