| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
- M1 `7 G- X8 y. w0 M(x - a) (x - b) = x^2 – ax – bx + ab8 p# o2 q% y4 y- T/ v
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; \  d  G7 j% G, J& ]  J# o(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
) m- j9 r1 C8 O3 [* r2 `. F(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:
0 \0 H3 ?- w" R  O2 {: C咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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5 g3 t6 L, `6 ?3 UThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
1 \& w/ R# F: P# |  V第一個答中有獎  a: i6 d1 @. l4 j
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(x - ...

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' [0 O' j; g, d$ 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:8 ^3 ~3 V/ [/ b9 h$ |

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(x-x)= 0 ，所以答案係0，is it?

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; [4 h* m# T5 U3 b0 `. @0 V6 Q似IQ題=.=5 g- R. N* s# i3 a* H
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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:/ o7 p* a/ t: K2 q: [" N6 n

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(x-x)= 0 ，所以答案係0，is it?

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: A* q/ k& }3 ]) \/ c/ s6 J9 GBingo~

waikong

我係學校個學生會單張見過8 @. J- b8 w0 P( f$ ?& 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.........! ^% z3 ?6 R5 S
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這條問題，貼落吹水版，名副其實% a6 k  [( V/ j2 ?8 V6 T
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]