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標題: | TriTri | A-Math 加分題 | [打印本頁]
作者: Triangel    時間: 2007-4-18 01:26 PM     標題: | TriTri | A-Math 加分題 |

第一個答中有獎
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(x - a) = x - a. K' m$ l4 G+ ]0 z3 t1 C3 t
(x - a) (x - b) = x^2 – ax – bx + ab9 n. [, w: y1 O0 M
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc0 B  \# i& f5 S+ @( g. {2 I! R
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd. x" w. B& E5 S2 R5 b; t
如此種推，
' n- t* o7 V" c5 ~; P(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???$ t5 w) X+ e  @

/ |- c& F) F; F& I2 ]9 w[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]
作者: 大大    時間: 2007-4-18 01:41 PM

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:
; D) }8 x) j) h# H. I(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc* s5 Q! \' {! i# G3 M

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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]
作者: Triangel    時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:+ K9 f4 M" O" \
咁難既=.="9 j% W0 {2 u9 f# O. r6 p
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]
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. ?: o7 D( @0 O' R) H" y7 zThanks! 更正啦
作者: littlenic    時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ l% M3 {. ^/ B2 z0 w第一個答中有獎
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(x - ...
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" M. ^4 e! {: ^" n(x-x)= 0 ，所以答案係0，is it?
作者: 大大    時間: 2007-4-18 01:56 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:
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(x-x)= 0 ，所以答案係0，is it?
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  k9 [6 I0 I1 L# W' S& P( L# {# P唔似a.math題5 g9 o5 Z$ X" U6 M  U
似IQ題=.=
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8 [5 D. O' q/ d( S% T$ c8 W[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]
作者: Triangel    時間: 2007-4-18 01:57 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:9 C  S  I: m$ V1 W- |8 E2 {0 W, D* S

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(x-x)= 0 ，所以答案係0，is it?
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. ]0 f$ I2 q; S3 z. KBingo~
作者: waikong    時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過
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作者: playbr2    時間: 2007-4-18 04:00 PM

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
作者: karen0123    時間: 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0........., {, g) @$ ?. d# I3 z& F  A

* g% Q9 l9 R& W3 E1 X8 Q- W# l3 J  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 ]



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