| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
2 K6 `7 [$ `  \(x - a) (x - b) = x^2 – ax – bx + ab5 m1 P; F& {3 d" E
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
. h+ `2 N4 r  D+ F5 x) i, M! j(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd0 o9 ]6 R3 z) W* }
如此種推，5 p2 Z* M- M4 v' m: a: B
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' C5 }. x+ N) P- _6 o3 L% g0 P

( F. s0 R9 \- X- \[ 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% Z; S2 f; k2 k7 C+ S; I" K; [

Originally posted by Triangel at 2007-4-18 01:26 PM:
4 t' j9 c# {& a8 U( H0 V. ~(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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- a% O$ z$ r/ O, p+ Q( B* E[ 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:
, P( Q8 W1 ^" D. x0 j% c咁難既=.="
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9 P  c5 F, @/ K! E  C[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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2 h) E  X) w# j, a! pThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
3 `$ q9 E  w# w& t第一個答中有獎
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8 ?1 M& R% q1 o(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 f. b; F) B% g4 ^9 W( k唔似a.math題0 d7 j! i8 \  M( X. a1 s; e4 A
似IQ題=.=
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9 j6 F, m4 m3 E[ 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:
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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
4 ~3 L2 [' R5 P. v8 Z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.........% [" T( l1 S% x, R

9 \! i: c4 n9 ^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 ]