| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
9 a8 t' R' Q- R' u4 {" _! G(x - a) (x - b) = x^2 – ax – bx + ab
, Y5 \4 s9 }- f. M2 i, n5 L+ j(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
* E: [9 }- r. l( _* M0 ?0 e' a(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
1 M3 j. w7 q) i5 c  H5 l$ P4 _8 ]如此種推，
3 q5 }0 J! C8 X, r8 s1 u7 j, M; ]7 R(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:( c1 ~' N; P# H% @
(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:
+ ~5 [1 a' k; o咁難既=.="
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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:2 z1 V  C: k- f2 U6 d
第一個答中有獎
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$ h$ \) z4 m3 X$ A4 T6 h, g(x - ...

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& V  Z, L) _! i% t! }(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:8 ~+ H+ T! }1 Z3 A
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(x-x)= 0 ，所以答案係0，is it?

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9 P" T" d: A/ n9 u. Y1 W; f9 h+ Z6 z+ O& M1 [! B- R* u8 c2 @
唔似a.math題
7 d: O* |3 R$ R1 ~2 ?似IQ題=.=- S6 x7 ~2 {( S6 r" j( w" Q' y# b4 A

! B% p8 n4 K; t3 n[ 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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% L+ V# u8 C& f/ dBingo~

waikong

我係學校個學生會單張見過! w0 L: v- [9 @2 e5 [  L' b2 l7 }
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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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 ]