| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
: g$ c( N' M0 L+ _. D3 q9 {(x - a) (x - b) = x^2 – ax – bx + ab
1 F; h' \) V/ m2 e6 p3 g" P(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 V: Z* `: W- ~* @% [
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd, }/ z# P8 a4 |/ s5 J, t
如此種推，: Y* }: r1 o  j& _+ ?
(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  ^8 y) J+ e: u7 J6 q

Originally posted by Triangel at 2007-4-18 01:26 PM:/ s* q- ]( [* M1 A
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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6 U* P7 P& b1 t2 [[ 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:( d8 l6 c$ [' }* D, }+ L9 ~
咁難既=.="
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: W9 r. C" t; [[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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! Y# v. i# ?) N# PThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
1 {( e9 Z! S; a7 U+ H  d& ]* j第一個答中有獎3 q! S2 B" a6 s) w3 M+ H

3 Z8 Z4 W% g7 N3 ~! S, o0 u(x - ...

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# M3 B& S4 G4 x1 \# p(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:9 {* O6 d8 }( I' w8 R  ~4 K

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" b$ S; Y2 l# Q. ~' f4 W8 R) t' T(x-x)= 0 ，所以答案係0，is it?

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4 ^% O1 s9 U8 j% ]" x4 \唔似a.math題
' \6 N; O& c+ A0 S; Y似IQ題=.=1 f+ `2 X5 j  [3 W* O7 m

. ]: g: P; ~4 [( w: ~[ 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:5 Q2 i$ o7 G8 |* c- t% o1 H# \7 m
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(x-x)= 0 ，所以答案係0，is it?

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0 b% W5 ]) ~" k& fBingo~

waikong

我係學校個學生會單張見過
/ ?$ f6 w* _% K+ A3 |, U8 `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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2 F' B9 Q- c1 x/ h) d這條問題，貼落吹水版，名副其實/ b. E3 y/ u) Y3 C, ?4 T: X! }

% ]5 k; }, D1 o5 K* l[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]