| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎! y$ R( l4 A1 h; B
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(x - a) = x - a$ ?! N6 I9 l4 }( r
(x - a) (x - b) = x^2 – ax – bx + ab
" B: f9 T0 y9 m! l(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
1 v  Y- X2 h2 x, i(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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(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:9 _4 M1 ^6 t+ L* ]9 H" l
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc' C8 Y. W4 A9 j/ a9 j

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# N7 t3 h( Y  J0 e: Z% p2 P[ 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:( t3 S3 D8 }, [, x2 x4 X+ l
咁難既=.="
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) L3 b# \4 D2 f! J* q: o5 D[ 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 g5 O0 V8 X8 ]
第一個答中有獎4 E3 u4 T5 O; Y3 g7 q: [2 ?

9 r* `- G" L5 v. J+ n3 L(x - ...

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9 g7 Y1 J5 }' n% b" l7 j2 j0 B9 r' A(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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唔似a.math題
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  q0 c4 Q) r0 V# b7 e" l0 V/ j[ 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:1 G" }# Z" c0 x) j9 H+ H
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(x-x)= 0 ，所以答案係0，is it?

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" n! A. h+ Y8 r3 q0 Q% CBingo~

waikong

我係學校個學生會單張見過
% P: i' p% t+ |4 Q* J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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$ g; _# Q  ^  g' \2 a: r& }6 |, r3 B這條問題，貼落吹水版，名副其實! l6 c8 T, i; I/ q! O" U

, B& |2 ~2 A/ u- f% O( G[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]