| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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2 K. D- b( ?. u* v0 b8 |( w(x - a) = x - a3 a. b; Z6 ^( C0 a' Z! V5 ~
(x - a) (x - b) = x^2 – ax – bx + ab6 |! m, r3 v2 j2 Y9 r, L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
+ z2 `4 W0 p  l/ `; }(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
- }6 J2 z/ y8 t如此種推，
  z) u" z% n$ {0 u(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:+ Y9 E3 Y/ H5 i9 k) d7 A+ C' e% R- G
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc; c5 N; F; r; I4 g: {3 o

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9 S- N  R; k6 D! f+ ~5 `: N[ 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:' Y" n- ]' ], e
咁難既=.="
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& G' p1 i: Q1 X[ 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:7 m1 H% x! }0 ^$ ?  R. X
第一個答中有獎, \7 i" D& r) x8 ]' F
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(x - ...

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' g( e- j- f3 X/ @6 C0 c(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:+ {# l+ C" t* {1 }
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
4 y% R( o- r7 J, q6 J+ j8 r  P, g似IQ題=.=+ a& H* X8 j4 E$ Y# W/ w

; x1 P) p3 [& _7 \[ 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:/ j. K( O) ]. C5 Q: @! C
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/ t4 x3 h$ T- Q' x(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
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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.......... u8 p, K3 N1 ]- H4 {/ K& n
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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 ]