| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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$ R( V2 g3 E; H# {6 G2 ~  ^(x - a) = x - a. G( j! ]' m7 L/ b' j3 X
(x - a) (x - b) = x^2 – ax – bx + ab
; A# ]3 P. B# U) H9 p(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
. }( ]2 \: V# M/ H+ N(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; B4 n1 k) }$ _) q0 \
如此種推，/ t" g$ T. j# |4 b2 Q
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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0 f1 k7 C2 Y  n9 u# n; x[ 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:
. Z% d6 i; H; w8 {8 Q. P$ a3 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:3 j2 C# I& C% s* p& f4 {. Z1 o
咁難既=.="
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4 D, ]+ y) Z4 H" x7 f/ Y) ~3 A( l, R[ 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:. q/ ]* [6 E4 @, C9 L# j
第一個答中有獎
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(x - ...

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  j( \2 Z( n3 x- j(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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$ R8 X2 |+ b3 h(x-x)= 0 ，所以答案係0，is it?

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. M/ }% O- }2 B4 e: Y唔似a.math題
9 r" n$ {& T) U, L9 b& R似IQ題=.=
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: T, _/ D8 p! Y+ n1 n[ 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:) K* r! h/ h2 w  y( |4 @

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# E# p. V  A8 V/ y$ g: O; S(x-x)= 0 ，所以答案係0，is it?

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' [3 T9 }7 u* ]+ T) JBingo~

waikong

我係學校個學生會單張見過
  t9 E* b) P( m5 W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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, Z9 }5 I2 G7 t" y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 ]