| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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0 P  L% t: o$ u(x - a) = x - a2 m' a. H4 g: _1 S1 X$ l9 R# A
(x - a) (x - b) = x^2 – ax – bx + ab& R$ f0 X6 c6 _% }* ]1 [& k
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc- Z( ]0 o7 C4 ~4 N* g) I% x- C: u
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd+ B8 Y) B3 v; c' W4 s/ q
如此種推，1 g. J  I! r) y: g; o
(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
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Originally posted by Triangel at 2007-4-18 01:26 PM:1 E( F+ i0 }  p" A( o, H: C4 Q, J
(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:) z  a. z; p/ B4 I- M( u; q- I
咁難既=.="
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+ u% r3 T8 M' `& ?  d. }; x1 u[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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" J0 _9 \, g/ X2 O% {& uThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
- d% f2 P5 Q: Z1 p. q第一個答中有獎. }' I9 k* `2 q% e5 {8 j
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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:( N# `8 U7 Q* H0 F

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* V2 W6 K. Q. t8 U$ l(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題4 f0 m; K. Q5 ?. Z* y; W
似IQ題=.=$ Z: L# i4 Y' `& {
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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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(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6 T# J. n) l6 [0 X3 s
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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# R7 X0 U4 _7 G5 @8 q: I4 d$ F6 g這條問題，貼落吹水版，名副其實
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! X1 O; V/ p) s& [; X[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]