| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
; ^( ]" u! K; Y6 X$ n% y  ~$ n(x - a) (x - b) = x^2 – ax – bx + ab
2 F: t5 H' J7 t9 P# E2 g. h(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
. Q/ M/ B$ L8 o0 S9 Q* u- P(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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(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:
: V6 D, l1 V+ _; n$ Z. k(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc' Y* T6 ]  s3 c& s$ f" ^

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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:! [3 D4 g0 {$ ~2 f& u
咁難既=.="/ g; S4 F* r" Y
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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:
* ~8 A+ _; {7 q1 G第一個答中有獎; _& V4 v* T+ u  G- P: a: r! b
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(x - ...

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% r1 N4 R1 t2 n% P(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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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math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:+ M. p. v& z' O7 v! R

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+ X4 F$ X. b7 j" b) }(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" C) C9 ?# \- h/ r2 D+ S. R
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8 s8 {( ~4 L: R

/ S9 l+ F6 o9 x# t9 f/ S[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]