| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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$ ]) [+ M* ?$ z6 s% e) S(x - a) = x - a
6 f0 Y* C0 T; N3 ?(x - a) (x - b) = x^2 – ax – bx + ab: ]) u  U& @0 W7 {9 m- q9 h! n
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
! L) |, {& l) y0 L( q6 w(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
6 J" U7 H0 g  ?9 W" Q' U- r如此種推，
/ p' `8 I% `" Q- z(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???1 k. \4 Y; g8 E8 ^8 ?

: ?6 T* C; z! L6 x; b: s[ 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:
& W' U* W6 q$ z7 H( ?, q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc3 w: r( d5 p6 @6 N3 S
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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:
$ A. w, v2 K! j, D# Q咁難既=.=". B' u0 G* C& M

4 G( p- G9 ?% `8 U[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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7 C* @( s) n6 T9 ^Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:0 V* F8 b' a7 o0 K
第一個答中有獎$ U, Z! I( H7 I- m8 [" n

! A* t4 K. n* C+ Q2 `2 v(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:) J8 b! K2 c0 A' r3 z4 D" c* E
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(x-x)= 0 ，所以答案係0，is it?

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, F8 p: G+ v0 e唔似a.math題
: \8 _( V+ v3 ^4 o  j似IQ題=.=
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! h- c* Z9 n' |% i9 f[ 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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6 N& C* q  F7 C3 f/ E6 k: h3 H(x-x)= 0 ，所以答案係0，is it?

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1 `3 ?7 C( }! b5 P" k* ~. f2 C2 H+ ~8 ZBingo~

waikong

我係學校個學生會單張見過$ E' z9 Q, ?" q1 y, X
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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9 g0 _% g6 t) H  L( M3 ?7 \& s& `這條問題，貼落吹水版，名副其實; ^! Q8 W4 j$ Z1 h8 n) ~' }
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]