| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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& H( }% x; N! R(x - a) = x - a! W+ y( E( q: m
(x - a) (x - b) = x^2 – ax – bx + ab, A) ~/ @' A2 |# |3 z# j
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc# v% A' ]0 F. a9 Q# e
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd9 W) Q  M2 u9 N( [! P
如此種推，+ }9 u3 h4 {; Y6 T$ B. ?4 O# e
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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8 R) q0 j/ Z. h2 W[ 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 a+ z6 L  d8 x/ x0 _3 [(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc2 m5 o1 |& l5 u; F0 ^$ g# Q
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! F) W5 t( f+ i  K" x[ 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:" v2 d% a- \4 f$ z8 L, p3 Z
咁難既=.="
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' @$ R/ S+ w2 |1 c+ j6 t[ 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:* w4 e0 P+ i0 W; C& v1 o
第一個答中有獎0 ?& `7 p3 t) t: ], m/ R
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(x - ...

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7 L  n3 Q6 i1 O5 R) y4 L(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:& r% k) L2 {* F: o) x; _* v5 `' Z0 I

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/ k+ D% C5 s, J+ x(x-x)= 0 ，所以答案係0，is it?

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' }" h) U" g9 n7 F# z* Q* p/ A唔似a.math題; s! ^* x& U5 R' l( ~
似IQ題=.=
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9 W/ K2 N5 C4 s7 [[ 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 Q: z- ^4 W" ]3 ]$ P
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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6 b) L/ ^0 G3 N1 }, 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.........
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8 u# u9 h; z  M0 i7 Q; K這條問題，貼落吹水版，名副其實0 I# d3 s6 `9 l5 k5 n2 Q! n, o8 |5 g& F8 @

' g5 o# I1 C4 V7 J- V5 U. a[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]