| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎2 V' c  J  \2 w/ O3 k1 J

' {6 ?, L( L+ I3 L5 F% S! z(x - a) = x - a" U3 G5 j. Y3 ~' A3 j; T
(x - a) (x - b) = x^2 – ax – bx + ab# Q  j5 i6 v" P) _4 e4 O* _! U
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: W; G% n& c* P% k( ]6 ~6 @9 L(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd  e- B# t! b: V/ {
如此種推，- q( }; H5 w( q# A7 f
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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- O3 y2 p) s6 \8 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:
' I7 M% m# j3 E% {% P(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc* e( b* V; e) k) j. j- V$ `* Y

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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:
5 @$ {4 h3 ]* n4 s7 }7 Y咁難既=.="/ y  @- \6 M) c. R7 X  |7 M1 B7 K5 m! X
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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7 v* p: o. T* L: j, C* V) g. x' vThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
8 T$ ?/ s/ w; L+ g  p! b2 S% W第一個答中有獎% w! }5 o7 l: C  c' O

$ R6 C& z5 n7 N4 B. d3 @(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:% Y$ Q, U) a& ~

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0 S: n! h* b( n3 J5 b( [(x-x)= 0 ，所以答案係0，is it?

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4 _2 Z; c* s8 k2 s, a2 ^' P. f: d' _7 P2 `# U! Q
唔似a.math題* i. b" p9 i9 [& T) L
似IQ題=.=
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, J: }3 [: z6 b( P& q[ 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
: d: E) Q4 e7 K% U% e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.........' r2 i* E1 _6 r9 L! H
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這條問題，貼落吹水版，名副其實
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4 Q( Q1 ]/ k$ ^[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]