| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
9 W/ X8 H7 _/ R5 _(x - a) (x - b) = x^2 – ax – bx + ab' Y7 H6 J* s5 B6 n, x7 p& n
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
" Y/ O0 s& v1 P# T5 y! Z(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd8 Y5 y% a; b; Y
如此種推，$ _( Y) i" c6 _0 ~/ M
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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) n% t4 h* V; X: h3 A; k5 `& t0 v[ 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:
6 A& a( t, y9 J! j- G4 q8 ~(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc, ?' e0 N5 C% m% B

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* W: o* @" e5 w: ~[ 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:
3 k5 F4 Z, c, ~* T) r9 b& s) Y2 l. j2 `" b咁難既=.=": [1 T& k& @3 L' B  J' {

+ W, w4 U6 {' X+ O0 j5 v- h: E[ 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:* U1 s1 q' I$ e5 y7 S+ b
第一個答中有獎
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; W# D3 h- L/ `8 p% {) w1 t(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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8 a5 Y5 Q: t( ~* y# I4 F(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
; Y3 v) t) V) V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. N0 B1 V: s6 K. r4 w! r) v
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.........' I6 M. E3 L2 `  ~- G* ~6 I

* S' Z: Z' o- X! Q' [. X這條問題，貼落吹水版，名副其實
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% q8 t. Y1 ^4 s$ N  Y3 u) t[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]