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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1 E* |$ u8 G' s/ d. S
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(x - a) = x - a
" V4 J9 H% J/ `! ?& a(x - a) (x - b) = x^2 – ax – bx + ab/ B+ j% Z5 z% E+ P
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 M: v, d. q; _. m, {1 a
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd8 O% ~" D2 O+ ?
如此種推，
1 V) i8 {! z& O+ R, Q, E* {' Z(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???! u% `9 @, F4 j; @' b
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[ 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& c8 }2 S! i& d' h6 s9 v
Originally posted by Triangel at 2007-4-18 01:26 PM:
( X8 M& S! X. B  M( ~0 h(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 ]
作者: Triangel    時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:
( ]4 w8 b+ Z. j4 A9 T1 ]  N( E/ j咁難既=.="
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. J: M4 W1 m, [[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]
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Thanks! 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:
$ m+ b& B" K  o) i6 L$ [第一個答中有獎
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' P4 d4 O( x$ C" p# l+ V5 A( Y! |(x - ...
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(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:+ Z) }: O( j6 f
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  t- r+ B, U0 ~$ b9 P(x-x)= 0 ，所以答案係0，is it?
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0 B) p% S  [* ]9 \唔似a.math題
$ \. A/ {! q! \' B似IQ題=.=
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7 k* J' ~. ?/ l+ z; }9 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:6 R7 T3 e) a! ?$ q9 q: k6 |/ Z. D
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* r* @3 B: t9 A& A; J$ u(x-x)= 0 ，所以答案係0，is it?
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/ w: C3 T5 _0 C. s+ W1 XBingo~
作者: waikong    時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過5 t& I. ?, J8 Q8 z# m! E1 G- x! I
諗左一陣先諗到
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.........
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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 ]



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