| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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, w2 p& {8 _9 k$ U  ^4 @. l(x - a) = x - a
/ u; x- q7 X8 p" Z0 H+ z(x - a) (x - b) = x^2 – ax – bx + ab
2 _4 I& q; r$ _9 }  ^: V! O(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 P9 w2 t/ q9 H: Z# Y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
1 `) ?/ e, Q! [9 M如此種推，
+ s4 P2 a; l8 [. `' Y8 w5 S8 ]$ }(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???. K6 s. x4 E" E; \
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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5 v5 F1 z! F* O0 b! f$ I

Originally posted by Triangel at 2007-4-18 01:26 PM:
5 @; Y- \$ v' f" b1 j(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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, I% G' d) j+ ?( O5 k( ]. L[ 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:
( ?' d' V+ A$ F* k咁難既=.="
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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:
# h) X3 v, C" h) z第一個答中有獎
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(x - ...

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: Q8 p9 g* r; G  X/ c' K(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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' f5 B: l6 N" r/ f3 V唔似a.math題
" p/ V7 l$ p; Z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:
6 a# G$ k( Y) x$ ?  e% U
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, K, b$ X- y1 L3 v3 _(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% H1 N: K, W  J7 i, F- d2 n2 k
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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這條問題，貼落吹水版，名副其實
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2 l9 O$ W. D, G, a: J4 [$ ~[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]