| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎5 Q8 f" }& @4 |& f+ c

- A4 ?* E9 O  l4 ^8 p% E4 m0 t(x - a) = x - a! J/ N( p0 R2 n- @8 D* G0 [$ H
(x - a) (x - b) = x^2 – ax – bx + ab( ^% {" y* P$ m) m: h
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
6 I3 Z9 H1 x2 Y% _(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd3 h* @! p7 p. P( N
如此種推，$ T& [2 E9 ~6 J1 e
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' F: ~0 `6 u+ ]0 k  C( H; ?
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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1 P5 n3 P- u/ I

Originally posted by Triangel at 2007-4-18 01:26 PM:
* _4 |% r% C1 K(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:
1 w% I) b/ {3 u2 W咁難既=.="
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6 A6 t: k6 u* S" ]% R' T+ j- A[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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+ b! X7 {, _3 U0 A$ y- q$ P# OThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:; z4 b! n& s; C8 E
第一個答中有獎
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/ H: ~- _+ f& s(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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(x-x)= 0 ，所以答案係0，is it?

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- \1 \6 p' T5 v  @! b6 T# B. L0 c( G* b$ `
唔似a.math題: y8 W; K2 G" \& W' M1 x5 q
似IQ題=.=7 U  a7 J1 W/ N" M, C. D
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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:, x8 w! [8 L3 t- g' D3 ~

, z& Q) A* c+ `+ y3 \) Q. o9 @7 h4 c
(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
7 v' p. V# V6 ~, Q  Q: f) A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.........1 U# P! ^. E5 y: E4 P7 z

9 Y  Q' n1 o, K/ L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 ]