| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎. I& U2 _# G0 ~$ @+ e3 L) {" C
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(x - a) = x - a" [' N- S  ?+ I4 m
(x - a) (x - b) = x^2 – ax – bx + ab
- J6 d: T9 k+ v: Q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc, G" p& N5 Q4 s. e2 ^
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
( a; [  N' e3 l% x0 T& E; D如此種推，/ d6 J0 s+ e. n& w
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???- G* k" u! Z% z) Q, O6 W% 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3 }) s; q+ ]$ y' ?4 n, e3 j% W

Originally posted by Triangel at 2007-4-18 01:26 PM:
1 a8 s$ S) T: `) H1 S$ M(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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, z3 ]0 v0 P8 w- T, o: G2 \8 C5 C[ 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:1 E5 U* N) e( J5 L
咁難既=.="
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. y9 z# \% n3 P( E! D& `( p8 ~# t[ 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:1 P& ~! ]3 S) l3 O
第一個答中有獎0 B. B  q/ ^% O8 K3 c, S
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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:! J: m# T6 p6 I: ~; g4 t1 `
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題# F, _( h1 J- h! e
似IQ題=.=2 H5 F# O! N/ I
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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- U. K" C0 K( R* D! Y
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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! j# c, c2 v) v
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.........0 ~; g! J/ V  V0 B3 }, |

: L" }6 c& q* P, f+ g: K- g. @這條問題，貼落吹水版，名副其實4 H( ^- @/ g" k8 E5 r. P
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]