| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a, F9 ~5 p  M7 q0 @- l* v
(x - a) (x - b) = x^2 – ax – bx + ab6 q* ?& E0 B2 Q% {
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc- J- y' Q, U6 U: I8 Z
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd, N' A, x2 ~$ j5 [6 D$ R
如此種推，6 ]" J- e2 u# q4 \7 Y
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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. F  E, {$ H4 @" ]4 B) }[ 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:
' W+ t# O0 `8 O(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc7 r+ a6 P: k( {- i; X7 E% B. r

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6 S5 O' r6 l& L; f; |; U6 g* z" A$ u[ 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:! M( S3 }  a$ W/ G
咁難既=.="& C+ D  J8 U, N% i  B; J7 U) i6 X

2 F) o! k3 t/ L0 T! \) P( Z7 o[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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% ]' u2 Q9 A0 X2 e# z3 N6 zThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
- q' J! D5 ]* {2 l. {" N第一個答中有獎! r) W! U" F; V" s, ?3 n; @8 B

8 u0 l+ [6 W2 ^0 ?1 z+ K(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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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
# }- \- f* }% p. ]似IQ題=.=, o  R# _$ [5 C- R: I
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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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* y4 F0 [% z8 A0 g  S: z(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
: [4 }, E  H8 Q" H2 ?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.........7 s' h8 V+ ?9 e# v, q

/ l1 {' c8 Z' Z2 D這條問題，貼落吹水版，名副其實
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$ q5 Z8 P$ `2 q0 G[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]