| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
# a: {' ~8 E, m) z1 R. u1 Z(x - a) (x - b) = x^2 – ax – bx + ab) a+ a% p/ l" X1 g+ n' G: q, s
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: c0 B3 s# E( x4 U/ T5 j% w
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd' s2 Y. s& L! I* V& |, w& N* g
如此種推，
8 K1 G7 _& t9 R  i(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
( t: n$ U% {; `; H(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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- d, l/ R  L' n2 K6 ~[ 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:
$ k, i8 R0 R2 ?3 ^) G* T咁難既=.="0 Z& Y( I6 M  _8 Z, X

! X; ]$ {( V1 M% ^) @[ 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:# g) v$ |9 G. V4 A9 f( b
第一個答中有獎9 o# ?' t) e) H2 |
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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:3 N+ M% \1 V' t  j

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(x-x)= 0 ，所以答案係0，is it?

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  s& a: l3 \8 i5 n唔似a.math題
8 a7 V% d9 ~4 m1 E" X5 [! W3 K, R似IQ題=.=
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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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8 e+ L1 L$ H; y* Z/ L# j(x-x)= 0 ，所以答案係0，is it?

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& Q1 g- f" X5 m5 z8 |2 rBingo~

waikong

我係學校個學生會單張見過
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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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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 ]