| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎  D$ s$ A/ z, F) n! z! X  l) K* p

3 ~! X. L9 a& f(x - a) = x - a
4 R* ?; t9 x2 l: f; D" O) j; b(x - a) (x - b) = x^2 – ax – bx + ab
0 @9 C. b: P- \* ~% f6 F" c(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
  J  O( K" W2 g# d! e(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
' s9 l, N3 O: K& ^* F% T如此種推，* d* H/ L8 U& j( g) W  L
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???! F8 u9 C- z8 r  V/ l& k
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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5 {7 \- J8 \0 ^5 v$ }6 N

Originally posted by Triangel at 2007-4-18 01:26 PM:
& }7 Z4 M: b- S8 z(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc5 \) [0 S  R: K& e/ G3 r

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# k4 W/ U* G% d( m[ 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:* M0 ^: \* _: ^( ?. N
咁難既=.="& H) `( R: ?2 @- j3 X* h
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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:0 i6 n8 z& D, F; w  q
第一個答中有獎; l7 @+ o* R( _/ K  }# M9 i

5 U% A9 f6 X6 s" I(x - ...

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( k1 {! |, y3 D; B1 p' A! p6 f  t) F(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
/ U+ U: K) R  D/ @$ _3 @
  @+ ]: |7 M9 _3 Q  c: N: a' x% d+ w. t" I7 m( {
(x-x)= 0 ，所以答案係0，is it?

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4 w3 L% C4 h/ N4 A3 F  m唔似a.math題
" c+ Q6 h& {5 J! }: s# }似IQ題=.=
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& ?: b$ n3 I0 ^6 G/ C. F3 ?2 X[ 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:; H  E9 L; P  b& b

* x5 a1 U% q- j5 \& ^' F4 @; e- `1 F1 U: ?. Y
(x-x)= 0 ，所以答案係0，is it?

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6 _' D( [  _% I7 O: ~Bingo~

waikong

我係學校個學生會單張見過7 O. ~; y( v9 @4 d- ~) j' k
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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' v' V/ l# F  E3 Y: N5 T" C3 G這條問題，貼落吹水版，名副其實6 n% A  F9 }6 a3 a" ?) j6 L! B9 p0 m

- k( G) k8 ^  F8 n[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]