| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎; j1 w" U# N: L* U9 U6 {

1 R! Z% S# P# V, T3 b: k(x - a) = x - a
) o! @+ N9 E& f5 |3 j5 [; O(x - a) (x - b) = x^2 – ax – bx + ab
( s  I2 {1 e+ `. ?: E0 q% X. P  v1 M(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc  p- K4 T  ]7 s) ^% Z& c) [0 z
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
* M* n8 F4 z4 L, R8 o如此種推，
$ R5 _  ~4 Y% e0 a8 t(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???( a) N0 e0 q! i, g* V/ S" Q

/ k! O! R9 E- e6 b# L" S[ 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8 ?& `$ l: m7 U% g

Originally posted by Triangel at 2007-4-18 01:26 PM:- [4 J* c4 s$ u0 R  @  R5 G
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc1 J% W: L3 Z" Q2 i0 {6 |2 G1 a" t+ o! Q& g

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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 g) s7 G( K+ \* e咁難既=.="( K2 h5 S8 J7 x  {4 [7 F% Y  g* ~3 m
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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:
- z- t. y$ H/ P7 f第一個答中有獎
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(x - ...

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1 e) w& P: D' D7 s(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
6 t: ?4 u) y! @1 Q5 ~2 S+ s' ]' J0 K4 x" `

1 V8 k+ i) ]/ v(x-x)= 0 ，所以答案係0，is it?

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& G+ n! @* l  J7 r/ u唔似a.math題
4 g% Z% V6 z2 a* u( R; k似IQ題=.=. j; [! G6 g; ?, ]& M; W8 N
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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:$ e; i6 C/ [# p* P5 e2 }
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(x-x)= 0 ，所以答案係0，is it?

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6 x$ ^. v: J* f' Z: KBingo~

waikong

我係學校個學生會單張見過
+ Q! B+ P5 ~! I! p' b" }% d' 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.........6 y; j* ]- i8 f3 z4 i/ z" d$ W
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這條問題，貼落吹水版，名副其實
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( }; M8 e" x' o7 ~[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]