| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎6 E! Y+ {; N+ J: Z$ h
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(x - a) = x - a
+ z' |+ d' l" K0 l! `(x - a) (x - b) = x^2 – ax – bx + ab
0 I2 ]6 v& P+ N+ D  r6 P(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
9 T7 H; ~8 S2 `, a8 ]- x(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
- `8 T+ K' P5 X+ E7 E3 m3 y: e如此種推，. j# x$ ]1 d. Y2 ?
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???) s+ A+ w- ?) H7 l' _( G2 W& E
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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:' C4 p$ c4 ?- R) ?3 r3 c' G
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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" a# }; Q* ]) W# {0 }[ 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:. i; U0 U' h+ ]5 _0 ~% p) l: U( l
咁難既=.="3 P4 e  i7 W9 i0 l) v

+ K1 V: ?) Z5 a/ J+ V5 C" H* |7 N[ 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:3 _6 J1 L0 Y2 i( ?% b4 {- J
第一個答中有獎
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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:
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6 }! a" i. C# R- x. O6 i* \" N0 w(x-x)= 0 ，所以答案係0，is it?

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( C: ]( W2 j. D5 f; v$ r  @' f6 G4 `唔似a.math題
( u+ q" X6 F9 m- C* ]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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Bingo~

waikong

我係學校個學生會單張見過- F; C$ x8 e7 n, ~
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.........
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這條問題，貼落吹水版，名副其實% M. z" w' a/ `# k+ p2 j
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]