| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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' d% o% S9 N* E$ A; D0 k(x - a) = x - a1 u1 ?5 e; E6 s+ _9 t
(x - a) (x - b) = x^2 – ax – bx + ab5 d, p  `3 p! P, a2 g2 @
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc+ P, n& T2 t3 K1 j( `4 y$ H6 s5 G
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
" ~, n, ^" ]! d* N5 {如此種推，
* D0 ?7 o7 |* U5 V8 i9 a(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???* M8 L" c  @# y; d, [7 P. d" k
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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3 Y& R$ f3 ?6 F+ V& y4 V2 I

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ S2 N6 e) O8 x' z5 ~" j* |(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc4 y0 O# o3 h3 N9 D
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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:+ [5 A7 E) Y5 h' P3 p
咁難既=.="
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3 w& m! k1 x8 _% x9 l9 o[ 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:# A1 y& U1 l; H4 M% I$ ^
第一個答中有獎
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' T/ f: n. ]; I: A( c9 q5 w1 h  I(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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- K6 |, a1 n$ H, L: V( B. S(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題0 j( S4 e4 ?' p1 x
似IQ題=.=/ m& F' s: w) z& E
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[ 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:
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(x-x)= 0 ，所以答案係0，is it?

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1 j6 q/ [7 R( [Bingo~

waikong

我係學校個學生會單張見過
& p7 J. ]6 H' \) v. q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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5 h" s# m/ b/ @2 z5 o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 ]