| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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  y: U- t- a; x& U(x - a) = x - a
5 B7 J- R% F* @8 L(x - a) (x - b) = x^2 – ax – bx + ab
# I8 F% Q. F# V, H9 F(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: }. v$ L. B8 a( `) I; l0 @
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
; ~6 }/ |5 ?- l, a+ r3 h2 ]如此種推，; M* F$ Q$ d5 k$ s% S8 }
(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:
1 B6 T2 `$ ?, J7 S* C" t1 g$ W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc; o: t- b. |8 L* l1 J( g& E

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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:) o6 L# o: Q7 @8 `
咁難既=.="
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: I3 q8 ]) f! p' o. C[ 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:
9 ^: `1 x; |5 T$ o' A第一個答中有獎
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9 [% O( d- j6 F. }- ]: q% L(x - ...

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& T6 |* L3 u, G5 I% f9 D(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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; ~8 N( V; z! g(x-x)= 0 ，所以答案係0，is it?

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' X7 I/ J- y( t/ h( n) O- B1 b唔似a.math題7 P% t4 ^: @) P+ ], Y
似IQ題=.=
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# \4 d* @: w9 `8 h# b[ 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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6 |8 x0 `  B% M: K; z* JBingo~

waikong

我係學校個學生會單張見過  W( y* r: c' a7 q- g7 @& F
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.........$ @( m5 c; p( _" `4 p5 i
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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 ]