| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎% X# E; o5 Z5 z+ d6 G

% `/ Q5 j; A  l3 k& \4 o! g2 G7 i(x - a) = x - a) n/ R  i. ~8 z$ F) ]9 s  `
(x - a) (x - b) = x^2 – ax – bx + ab
( j) |, g; B; e& H5 n5 u% y(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
* Q- i% A* Z. P(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
4 i6 ?7 D( B; ]1 N, p7 v# x如此種推，
  j1 C9 f" \3 C(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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. I' K' y$ e" _4 c$ e2 H[ 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:
! T2 c4 a* p" @4 v, e(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:6 |' }# ?+ y2 R% z( W4 @
咁難既=.="
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2 o) I- w& u5 z: W0 ]( j[ 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:9 u1 X2 |* G6 k; G9 a$ \
第一個答中有獎
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(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:; A* R3 H% ^$ u+ y" k/ R
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. m9 n: W" W) {) C& }: N1 f0 o(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題1 q* y8 p- C4 ^; T0 L: U5 s% x& B
似IQ題=.=
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- y' _; [0 h4 g0 Y[ 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:1 P0 \+ W5 |& p$ R1 m% u& c0 I

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; }2 l! Z0 ]6 [+ W! v4 }(x-x)= 0 ，所以答案係0，is it?

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* K, d7 t7 U: N, dBingo~

waikong

我係學校個學生會單張見過5 C% [$ L$ j  x6 n
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.........! Q. C( k; x+ o( W6 x! r9 M3 N# [, U
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這條問題，貼落吹水版，名副其實
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7 ~9 |  T% L/ b[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]