| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
/ p& ^- X6 U& e: |3 \+ O5 \( o) c: G3 p(x - a) (x - b) = x^2 – ax – bx + ab  z: k0 k$ e/ @/ S) s  \
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
. t5 y7 E/ c( N8 D9 U! Q(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd6 v, M) }; X# y3 A  X  Q
如此種推，9 D3 D& f: `! U& S3 i! `. b
(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7 g) }" ^0 \1 j4 Q3 p. G

Originally posted by Triangel at 2007-4-18 01:26 PM:7 O  x0 i! M8 ^; k  B
(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:0 r; T- e' b7 L! H/ ]& ~
咁難既=.="
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* S2 F; q& g5 Q; Y1 g8 w. I  q[ 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:
, H% N! r0 f1 @! e第一個答中有獎& l  {7 G- M( M
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(x - ...

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/ \! I( G8 C; c% _$ I(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:/ }- j0 N9 E) O# t- |8 U+ }

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% k  r$ \1 V2 t9 @* G(x-x)= 0 ，所以答案係0，is it?

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' m& X' H* J3 x+ ~) n, H唔似a.math題' r" b5 Y9 E: X8 R6 u0 e
似IQ題=.=& S% h( l  B% Q" g! R
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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:9 n; L2 i- g; ]9 G; D  r
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5 l/ c  W0 B/ W7 N(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6 }! B4 H( ]  r5 i0 y; F' m
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.........; A4 C; Q, j0 a) W" b
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這條問題，貼落吹水版，名副其實
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+ U9 ], s* ]- l9 R' ?( N/ n[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]