| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
0 J  \5 V. d. h, Q- O0 L, y8 f$ p(x - a) (x - b) = x^2 – ax – bx + ab4 k8 v1 S; ^1 l
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& ^: q* A- C" \2 p2 Z" n/ ^
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; d. F. B" g; w& i1 R
如此種推，( u& i8 B# }' y! e
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???, ^2 z% V/ r; K* z- b) _8 ?

; e' {! Z4 U/ W3 [, Y[ 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:, m2 P6 O, I7 U3 z' C9 f* q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc! Y% s8 f+ s  b5 c; H& x& u6 }8 f
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8 R( Z$ n7 P. n: t7 o  B[ 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:
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) O  N1 b; m  V[ 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:% D3 ^1 U  J8 s
第一個答中有獎9 s; J1 m; @) a7 J, i) b4 A

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" ]. K) [- D# \* w3 C3 O) c1 P(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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9 X5 K/ d" I& n8 s* `4 l- x5 I唔似a.math題
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7 Z) J: z/ r- m3 ?1 M& p" k9 L[ 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:- g( F7 q, W( O4 }6 k

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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
' ]& C9 h1 S" F5 E! J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.........  u  f, K/ Q4 u* h( \! j- a

% P. U+ A! }! `$ G3 v( a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 ]