| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a+ @  `: a# k8 I0 W* I' O& O* @8 Z. R
(x - a) (x - b) = x^2 – ax – bx + ab
$ Q) r: u2 O7 @9 G! G) Z(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
3 I8 O0 u! C- Y& P+ o(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
, A4 c; X% Y7 E& B$ c如此種推，# I/ Z7 X9 E$ u9 v6 F( c' }& K
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???, e3 {, o; F* `9 p% m! j0 f2 V, ~
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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:8 U( p9 C: B7 L6 N6 @; y  p0 M
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc; K" V0 l9 L$ J8 C% O

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[ 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:
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7 Z! C( {; h# y9 z* A6 l[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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! f7 b/ f  p2 @- o: X! ZThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
' E# F* l, v) A5 r2 G7 r" p第一個答中有獎
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(x - ...

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) r" c- p, e8 x, j' M(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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2 u2 `9 ?# K- r9 s& S/ _/ `唔似a.math題# K; B: s4 \% E- t; y  q
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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+ {/ V9 l* l. \2 l) k(x-x)= 0 ，所以答案係0，is it?

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6 n0 X6 S- e! C, k! lBingo~

waikong

我係學校個學生會單張見過
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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
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]