| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
/ Z& N- X& g; j+ i8 `3 _. Q(x - a) (x - b) = x^2 – ax – bx + ab4 @2 W# X4 \$ n
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
2 I5 A& U! {! I; g(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; ^' @! S* w$ t6 \, q
如此種推，) M/ t9 @! U3 Q! @, R$ V1 W
(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:
7 H" _1 `6 ^3 I1 k7 E(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: u0 k1 Q+ E/ B* d0 l! t

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7 M2 K% a: S% ?2 q8 p9 z[ 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 T6 h7 n! g, `3 A
咁難既=.="
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[ 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:
. c# j0 d6 f- i3 z  u第一個答中有獎& a: J- e) b8 [2 X, D; E( t

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! Z$ o/ M/ b4 Q+ f" |) }& Y: O(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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(x-x)= 0 ，所以答案係0，is it?

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  w  G% z0 M1 |8 K! P唔似a.math題2 U4 }1 R9 P% a0 I7 t' w5 {8 d! o
似IQ題=.=8 Q. C* u* ^5 p/ R

9 K6 H1 u' E' |$ z  i7 w9 d[ 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 \/ u$ ^9 Z3 N5 }- l+ S2 p
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這條問題，貼落吹水版，名副其實
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+ i  A, w8 P4 }0 F[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]