| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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/ Y! q* m- w! k  ?" G(x - a) = x - a
, _$ d6 Z: s7 S5 {5 @0 X# L(x - a) (x - b) = x^2 – ax – bx + ab8 ^1 |4 C4 R2 {! a$ N$ _  M2 K2 @9 o
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# T( f7 J+ ~4 Q# X2 Q(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd& W( v6 y7 |( s. R! o
如此種推，
0 W! j' _3 _9 A) c(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???% H7 R" m: S9 F" i$ T4 {' A

7 n8 R, Q5 ^# _! D" i[ 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, R8 |6 ~" H3 I- H8 p7 T: C

Originally posted by Triangel at 2007-4-18 01:26 PM:
- z7 L) \/ q/ e4 A(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc" |( F% @( W# D0 {9 V
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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:& ^, C2 g/ W, L
咁難既=.="
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% j$ x( t3 e" s, r4 ~[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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) _' z6 n- u. b/ w% b" L) KThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:+ s% Z, u! u+ b; g' o& P4 p9 I2 j6 f
第一個答中有獎$ t( U8 G2 x, k9 \+ H; [) B& n9 d
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(x - ...

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+ b" Q# s7 ~& `0 L(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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9 F8 n4 Z  N+ l! k) q" ~(x-x)= 0 ，所以答案係0，is it?

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7 H( B& c  N1 z1 z+ q唔似a.math題
4 q7 M9 y# D0 _9 K: x, S- o. r' o似IQ題=.=7 n3 ]3 z: k( h" @

. V- Q3 f* L) l% s5 D  W0 }[ 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:0 z/ ~  L- q, a, ^5 V
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(x-x)= 0 ，所以答案係0，is it?

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  N7 B6 e' [9 L1 y+ y# D/ ~Bingo~

waikong

我係學校個學生會單張見過
- z1 m. z* z- M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.........( P  D$ Y$ H! k' p. e! F: d

3 c; P! J7 w/ ~8 s; n這條問題，貼落吹水版，名副其實  j, V' Y% g% {0 p2 ]. s5 D+ o
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]