| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎6 \1 g: h7 ~6 n% Q! }

0 y( Q! l7 I4 Q  O- ](x - a) = x - a
0 O1 t$ p- ^% `# ?(x - a) (x - b) = x^2 – ax – bx + ab
/ e/ A$ i8 f# r6 o( ]& r7 l/ ](x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc* S$ ?. \- N, I( K* Y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd/ z+ b1 \* C) v* X2 r4 j3 P
如此種推，" ?. i! B9 R$ p) T' ]; n
(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
$ z1 F1 h+ x+ \" P& @  ]

Originally posted by Triangel at 2007-4-18 01:26 PM:/ R; e! Z; s: T4 b
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:
' {8 ]0 c" n% g- }& T& d. W1 V+ a咁難既=.="1 a6 ^. W: L; y) q* S3 n

- N  _  ]- d7 k* j# `! X[ 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:& h' o6 \0 o  S3 B  v" ?' `
第一個答中有獎
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(x - ...

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! I$ C  N4 N# Y: c$ i: e( K(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
( a# ?3 S+ t) }# b( ]* w& Z; \( S4 p6 X! V& A; N, _

% |2 L. l- @; m(x-x)= 0 ，所以答案係0，is it?

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& a7 _% ]! L' {- |3 i2 {: y唔似a.math題* r# C$ Z9 @3 z3 j$ ^! O7 z
似IQ題=.=
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$ D. D0 i$ b8 F) ^[ 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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) O6 S1 c4 p3 _(x-x)= 0 ，所以答案係0，is it?

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- m& }8 E2 G% j1 ]! j$ z3 h0 V# BBingo~

waikong

我係學校個學生會單張見過
9 v; u+ }+ Z* i3 `& o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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這條問題，貼落吹水版，名副其實: d' q1 n1 z* @$ w7 e6 G

4 s. n2 B8 g  D. r* Z4 o- U, G& W[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]