| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎9 _- W& W0 B* q9 h, R7 S
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(x - a) = x - a4 F' u6 L9 N8 f3 Z3 x  w
(x - a) (x - b) = x^2 – ax – bx + ab
+ p# [' {$ \$ ](x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
/ ]& T  ?3 B9 ?# Z8 m6 X" ^(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
4 z/ B/ D0 E- G; {5 _如此種推，, D! U) F% @3 ]5 T9 J% U
(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. [. H! B5 A1 I& X) O

Originally posted by Triangel at 2007-4-18 01:26 PM:5 O; G1 r7 Z0 e9 _' U/ @7 T3 s( {
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc- P* Q3 {  O$ F. Y! D& j2 I
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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:) P7 O  H" z. {/ R+ a$ X
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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9 F0 n7 g' i& r* u9 OThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:' ?& v. k+ U6 K2 B" J3 M! [
第一個答中有獎
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  b4 x6 T/ h. x/ S(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:
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7 b; [% q; N4 `7 s, G(x-x)= 0 ，所以答案係0，is it?

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5 l' I3 Y8 X. E' U' Q& |唔似a.math題  C2 R+ g  Y* Z4 M; j6 {2 J
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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(x-x)= 0 ，所以答案係0，is it?

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1 n2 |. P. ?9 a$ wBingo~

waikong

我係學校個學生會單張見過
2 _8 i2 o/ m$ _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.........9 Y; @' Z$ X$ W5 ^; M' f7 B

" S* W! v' y' s/ P2 O這條問題，貼落吹水版，名副其實) q( H+ j6 J5 S

: x' {, ]9 V  |' A- G3 l% Q: k2 F6 q[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]