| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 p- B7 p+ |' V0 f( I

4 `! ?& V1 x! J' ~9 N5 i2 ](x - a) = x - a3 h% a( h. s9 }
(x - a) (x - b) = x^2 – ax – bx + ab& r; S! |1 [3 A1 Y9 O# d
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc/ F1 x6 A. r; I( X
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd8 g: e  p2 G9 h3 ~
如此種推，- F/ w) u; A+ b1 S7 o
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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9 ?0 X. t; t' ]7 y4 L( }& _, S[ 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' l9 r5 ]7 s8 R( k. X

Originally posted by Triangel at 2007-4-18 01:26 PM:
) q; t$ L& H5 [6 q! ~, ~" R(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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9 w+ j  S- y0 c, ^  x3 O0 v[ 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:
& w7 r. G0 U+ x; H8 o8 r# P咁難既=.="
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[ 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 X7 |3 s0 }. F& w3 G( h9 q; q
第一個答中有獎- s/ n& X  E% T+ n
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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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' T( Y% r; n7 B6 y% s1 G# ]! C2 C4 L5 [(x-x)= 0 ，所以答案係0，is it?

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2 e& w+ w  O9 R+ i唔似a.math題
3 j, p5 k/ u' w. L2 F似IQ題=.=
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, w9 P7 g, ^/ `; K: n% J( A- U[ 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:+ i* B: q4 P$ O' o' L6 l1 O
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( e% F  T9 o+ e/ U  d2 r9 o
(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0 q2 N( {0 X9 ]
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.........: ~& B( e# @& `, w7 T

+ }& g8 }& x/ z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 ]