| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
3 Z/ m) A. T$ u% r1 U(x - a) (x - b) = x^2 – ax – bx + ab9 K4 e' q) _- q2 |& x$ W
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc; Y7 K0 S; u8 i0 n2 V
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd* s; P7 `, ]) j) S: j5 p8 u
如此種推，% |+ c( j4 w! d, r8 t- g
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 C5 ?' w/ z5 B& |; D7 z, b( ~6 ]

, J, @: u# u+ b* x  k% X! |1 q[ 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/ s: J7 q: {' Q0 ^& \' j; m1 F

Originally posted by Triangel at 2007-4-18 01:26 PM:* c6 G! B7 Q1 e  ~) [) A3 Y1 ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc* H. \( u9 t* x4 ]( l' r; K  o/ m
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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:' t2 H4 o  p9 _9 Q; t
咁難既=.="+ _$ u' m# N& x, r' c) k

! l, q' K0 E$ b: D5 N[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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: ~7 m( Y9 k; l6 d# V4 Z# s6 B' k/ gThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:9 z+ r# i0 r2 ^! m5 Q+ m# j0 A" {
第一個答中有獎8 k% b7 b1 W# \7 D0 k0 W
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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:0 c) `) Z$ b4 E
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
% b1 ~- K2 v5 B' o似IQ題=.=8 b  s8 b# f0 N2 \

  T& R/ O1 _' D% H[ 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:( x! @5 f! R2 M: f1 s+ V
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7 p6 z" r+ h! o$ ]* H( Z(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% z; ]' N' t+ m0 v# Z- Q  a
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.........2 m+ w6 h1 E- k* S9 j- a% l) R2 _

9 C5 r9 g: j8 |. p( [這條問題，貼落吹水版，名副其實9 Q: N; }" F) P
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]