| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
4 \2 M" f5 o- ~: d* u' @(x - a) (x - b) = x^2 – ax – bx + ab
' l. [1 k3 \! r5 D(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
- A) A4 T# @# H( K(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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(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( E% b- q9 l, I- v

Originally posted by Triangel at 2007-4-18 01:26 PM:4 x" V( a- d0 \9 N. G5 l0 m( p
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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/ _; I4 g/ _5 v. Z/ ]) w[ 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:- P+ s. c; J3 E: I0 o& q! }
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:: ?2 A7 x8 \% S* R( C" x
第一個答中有獎' @6 p6 P& l% O& a
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(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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  {$ _3 o9 R. q- w6 }* }6 Y6 x) k
(x-x)= 0 ，所以答案係0，is it?

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$ m/ M; |  x$ J5 o% i& Z唔似a.math題0 X1 o! l! o$ L# k$ ?% \
似IQ題=.=# G/ Y% {+ F. }

! ^! _8 d. b- M6 n! T3 _0 j% u[ 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
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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.........6 A. @$ L, n! @# ?

! p! [! b. G. y* \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 ]