| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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5 h3 C( r- B" d/ U8 O(x - a) = x - a
9 e4 H0 Y9 u8 e" Y(x - a) (x - b) = x^2 – ax – bx + ab) e' t$ m% q! O$ R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
6 p" o" L, C  ]' a(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) = ???; T6 y( @6 V) _$ p6 }/ X0 o$ N3 J

/ _3 \$ s# p1 }1 k3 J[ 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:
9 @! \: h3 O, Y(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc8 j. U1 p6 v/ y6 D0 u
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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:! Q2 q/ D* |, b1 b6 b' B
咁難既=.="
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$ r. `+ `& j% i: g# D% W& i[ 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:
- |9 |, S$ z; G) j第一個答中有獎
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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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% y1 i1 ~* r/ s: P4 Q2 U* x(x-x)= 0 ，所以答案係0，is it?

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  n5 B% F: q% h2 y$ Q唔似a.math題
2 A4 @" d+ M. |' F7 L$ Y似IQ題=.=" U' I0 \$ M+ E- v) W

. S* }- w/ t/ 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:2 a0 r( Z; b8 l5 `4 v7 A) S

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: g4 R6 d" m  a( w/ f5 X(x-x)= 0 ，所以答案係0，is it?

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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.........
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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 ]