| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a2 o6 `' G' S8 W; s( n& U
(x - a) (x - b) = x^2 – ax – bx + ab5 g5 J% e, a: _, O! D1 D
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc0 r# x. e  {) F: d
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
6 N& R2 g& k, u( `9 a% r  J如此種推，6 m# g' w8 T8 c6 i5 ^7 n- \
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???7 v! J0 r8 w) t/ K* o+ O  Y; X

( g/ r$ N$ z( K[ 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:+ a* G  J# x$ q" ~! i) {
(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:- \' u* Y; ~- g- P7 n3 |  q, q1 E
咁難既=.="& g5 d0 a9 S$ u
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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:% A- B; }8 k1 T
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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3 {  Q  r$ u/ }! O+ E/ Z(x-x)= 0 ，所以答案係0，is it?

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' ], a% O' l( E1 D: j唔似a.math題
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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:4 P% l- r; H# B( ?  K, H1 Z6 t% C$ ^
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(x-x)= 0 ，所以答案係0，is it?

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" U2 N5 g; N) F3 l( P# O' f7 ?1 c$ FBingo~

waikong

我係學校個學生會單張見過+ t% Q; V/ N( f. [4 v7 [
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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) K  \  `6 X# ?: O5 }( o0 B這條問題，貼落吹水版，名副其實  V# M3 F9 c9 x- H3 w6 s

  R+ D* k. L% X% P3 C/ z, p+ ^[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]