| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎6 V9 w9 L5 t' E+ L, I+ f8 w
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(x - a) = x - a
" X2 {( U! {# L5 o' }(x - a) (x - b) = x^2 – ax – bx + ab
7 m5 ^$ t# K$ v0 B1 y(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
+ G* z- E; x1 P9 N- Q9 B(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd, r1 X0 V8 ]+ d$ a3 x$ y9 o
如此種推，
5 B" C7 S0 t2 h6 ?! ](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???% U8 P, t% w/ a$ f6 ?% [
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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/ e/ x6 T  p7 e2 i5 E# y  Z3 L+ Q

Originally posted by Triangel at 2007-4-18 01:26 PM:
$ T8 O, R2 c0 n" |0 r5 h% |: q+ y(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:. f0 ~- H% g# Q( i
咁難既=.="6 v9 E2 L# l" h+ `2 L) j

4 q7 w6 A- B9 Y9 T[ 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:  m* M; r/ ^) _! o
第一個答中有獎, [/ H7 b/ ], s& e% d
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(x - ...

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% j/ z4 y; _7 C- E6 K4 t- m3 W5 Y9 ?4 h(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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. S  G3 N% Q( V" m  p0 I5 i(x-x)= 0 ，所以答案係0，is it?

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3 v& e! b- W1 Y/ b0 j. Q. b唔似a.math題
* I) j/ t: X% R. G/ q$ }. q1 g似IQ題=.=
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' s) c' V* ~! 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:
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9 U0 j% B5 x/ M
) ~/ M5 b$ i& P5 t2 @(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過
: ]6 k# P+ t, A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 e, A9 E# e- Y0 \4 H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 ]