| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
0 F8 t" ^& `% k- t  o(x - a) (x - b) = x^2 – ax – bx + ab& }, U% L( B8 w5 C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc. }& ~) `5 V3 M' j
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
; A$ p0 Y# }- b$ {) S如此種推，4 N- x. ]- e, q0 y  z
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:5 ~2 v6 G7 |0 _4 @2 Q  D$ \
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: j  b0 u2 W& u" l; m, @6 J
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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:
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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9 J" S$ o/ W" N; J: q) L9 k  cThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
1 Q1 r8 h$ n# U" H% T( f+ t& _第一個答中有獎) i/ Z- a8 k' c4 |7 e4 l* d7 K

+ N2 u" s$ P6 \2 T$ @  {# q(x - ...

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  t& g+ `7 x# S* T# X1 x(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:5 Q! f* n$ A; k6 k6 r/ ^

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(x-x)= 0 ，所以答案係0，is it?

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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:
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; T2 a8 R# A" I$ s5 S" b(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: o" g% K- n* |3 i* t! U
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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; q1 U1 k- Z4 U$ L( H8 B這條問題，貼落吹水版，名副其實
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3 \3 W! P/ @1 i5 @[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]