| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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- R' ]$ |* j  X, k5 [' \(x - a) = x - a# B& ^# U% }6 k0 D  G- ?
(x - a) (x - b) = x^2 – ax – bx + ab: b% ?+ k- E( V2 n( H+ i$ j
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
7 H3 m$ K8 O  \3 V& F$ d(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd! {" H7 q1 L' {1 Q
如此種推，1 V. s# T4 D, a7 R9 K! A" W# _
(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 R" ?1 x3 }# y5 N
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc+ H$ R! X7 m  s; v. G+ l3 M+ K
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, x+ Y0 Q6 h( i. F5 G, n[ 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:* M+ I0 I, p* k/ z
咁難既=.=", q4 w! r+ |4 k6 Y" x  W" T$ B/ _

! X# i6 G, w6 c7 r0 H! ^[ 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:
! n% u4 p3 U/ n! l9 a5 k+ Y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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$ p$ F' a* n( c: b* e% p(x-x)= 0 ，所以答案係0，is it?

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) v  f9 t5 p; n! V* ^: Q唔似a.math題
! Y+ ^$ a1 ?6 C5 A! v8 V% y$ u" H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:7 |1 b- Z& Z' ]

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(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過/ W, g% E* h+ b  o( l& b5 l
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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3 S, |. i  I3 s5 }+ |  P- e這條問題，貼落吹水版，名副其實0 F8 W; U! m9 H  z4 h
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]