| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎5 }% ?7 U2 y5 m2 o- Z6 ?
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(x - a) = x - a/ K, E# X/ F7 C9 r2 A. J7 _
(x - a) (x - b) = x^2 – ax – bx + ab0 {$ _3 ~  d( q1 k# u
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc, z5 y3 \% C2 n: A! d6 o
(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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9 l7 U/ F7 |6 J4 [6 ~[ 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, A3 G9 i' m( p4 Q" W4 [! }

Originally posted by Triangel at 2007-4-18 01:26 PM:. N( `+ J1 S% l
(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:; P1 B2 t0 j0 F/ g9 `  g5 p) 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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' c+ L/ a3 }1 j/ L/ |$ WThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:5 y0 z3 O# h, L+ g+ Y" {
第一個答中有獎
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(x - ...

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(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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5 F% y7 V* ^$ d1 q( P% c. g(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題# ]( \& m1 ]6 c" o7 {
似IQ題=.=( z, p9 i* _0 s0 }

8 F+ U. S+ A0 h[ 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:5 Y% h1 _) |' r) Z$ Y

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0 b( `% C# V/ w  j  \4 e; 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# i7 E3 y( c0 `8 ?6 x' s; [+ i- _# O
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! c4 J# ]4 M3 ^( z
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]