| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎& L( Z+ G" {) H1 B
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(x - a) = x - a
+ {- |* v5 l, p(x - a) (x - b) = x^2 – ax – bx + ab9 ?. h) F7 q. Z# W# J7 E
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc, w$ h) y+ ]+ c/ [% Z5 M
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd7 I$ [! a( U0 D0 W
如此種推，
, p& _; v0 y- a; Q7 [; A" t' {+ R(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???1 I  b+ Q+ p  s$ Z

# P/ p' _& f! c* 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9 `* u4 {% C9 s$ k+ p- o, m; \

Originally posted by Triangel at 2007-4-18 01:26 PM:
) c& v+ e& c5 t8 E/ x  c(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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6 z4 C( z, M! s[ 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:( t5 a$ t+ h0 i! ?7 s
咁難既=.=". y7 t2 Z( A' ?
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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:4 P0 O; Z+ U8 T6 P2 U0 c
第一個答中有獎
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4 A  I2 N- O. X9 E8 o& f! B(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:% W, M7 L/ L8 Y: D% P
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3 `/ ?& m$ R( c(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
5 t2 N) T: m" n似IQ題=.=0 W$ n4 K3 l% E( m: q1 E) G

) r& T5 W4 @) z( j' y[ 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:
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(x-x)= 0 ，所以答案係0，is it?

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# S: i! ~  I  q- l  y0 q% R7 F4 y! @. tBingo~

waikong

我係學校個學生會單張見過
" r4 Y- m9 l2 b3 T! t! t: 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........." L. V' Y) @# i% B9 N' h
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這條問題，貼落吹水版，名副其實
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7 l* _9 ~/ a4 d! N; D( ~$ g; n: s[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]