| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
! C7 E: w" X: e" D- [(x - a) (x - b) = x^2 – ax – bx + ab+ x7 W3 d" M+ _1 R9 _2 M6 S5 c5 L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
4 W' O+ ]" G- O7 N" T7 }6 H(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
' M$ D5 L6 f- S6 ?* e如此種推，
' Q/ g  P, k  D8 g  K(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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/ ]) N" s6 S. j3 [+ r/ `[ 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:; s1 e( o5 F' U. l% L8 X8 Z" ]' [  w
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc+ f1 r" _# g+ t8 z3 \

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; h& l: f" _) N( y0 J5 G5 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:
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, K+ v! e) r6 P! T' W- k[ 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:2 V. l% [% T3 }5 ?
第一個答中有獎
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/ C9 `/ V% Q9 s. Y: g+ |: c(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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(x-x)= 0 ，所以答案係0，is it?

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7 }7 D! h# x6 g9 [" S4 g唔似a.math題, G" c4 ?  J4 V1 ?* }) d& ]% q& \
似IQ題=.=  r4 e8 C7 r" i3 n
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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:
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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% _, @# J4 M0 k3 ~" @1 V2 W8 R) p# I$ `
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........., I5 ~# G6 |6 s. S* _) Z' P, ~' m

+ O& V: H8 j* t4 k2 R% @  X6 n這條問題，貼落吹水版，名副其實& f& D& t4 I: c/ h" n1 w- D4 x
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]