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Triangel

第一個答中有獎
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' h: x9 L4 b0 ?* K(x - a) = x - a
2 J' ?+ S7 \/ r3 g(x - a) (x - b) = x^2 – ax – bx + ab
2 |# d& z7 M, E1 u9 w$ A3 h1 Q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
* j  v* y5 R; W+ a6 l9 v. I(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd" t* ?6 p, c* ]2 u  q6 F
如此種推，: g; j" `5 Z, x& X: j; T$ _0 h2 q
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???2 ~, v# T' q% ^) s2 n8 P% c

) a( X( h9 Z: D& R[ 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6 I+ E* T# p7 X0 m7 S

Originally posted by Triangel at 2007-4-18 01:26 PM:
- W5 p5 f+ t6 O: `/ Z- I(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc/ J3 I# m( Y# {5 Z- z* v

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& W" m- P  Q; N# m6 g: o; ~[ 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:4 ]$ D% c' d' L0 m" w* e  b
咁難既=.="5 H: O$ A: M" R; |8 r! L# \* f* {# Q
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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( I9 y. j8 C% Y8 u5 y/ m; I$ BThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:8 x. q0 A& |5 S, z1 j6 S
第一個答中有獎
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* T* [) W. {- c# r% n2 R- w(x - ...

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- x5 g" _& U# m0 R0 c(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:, E7 Z0 E# v7 L% o+ U# C
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3 Q& T9 l$ b+ I(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
7 A- O, A1 T* V0 h9 v1 P+ m% h; I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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(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& u- d6 X$ r6 v* z/ L% L
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.........9 b; U% a. J! N5 L6 t0 U' u) \
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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 ]