| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 u- S2 z9 H4 {
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(x - a) = x - a
- P/ J2 z( E+ t1 X) e9 d. A4 ](x - a) (x - b) = x^2 – ax – bx + ab( i4 w+ h) O& N$ N/ v" f
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
7 n/ s( n# Q9 L! i(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
1 E3 ]' d" k! L3 q! G$ i如此種推，3 n8 ]6 R& N: ^6 ~9 q9 O% t. F
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???4 P% N! f% f5 {6 c3 \& Z' O! r& j

/ A8 B- _+ H, Z) M, H7 i2 d[ 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:
. V; f) }' r2 {1 t3 n' ~% j, P(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:
) Q% G7 `) |8 Z9 h0 |咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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2 y; D" U7 y1 M* n' M8 OThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ w& n6 b4 m' O( K5 p) F第一個答中有獎
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7 {. v, d# K3 }' p% |5 k0 {* |& X1 m(x - ...

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( Y4 `; S/ B" s0 N1 x" q(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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# N4 O* l$ h8 _(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題# _* j  B! d8 G8 }8 _8 F# f
似IQ題=.=
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$ R+ ?9 o5 f4 E8 L1 V( T[ 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:; T8 S6 K& Y1 x/ o

' h; l  T; G! H" @5 j8 u5 H  z$ g
- K3 s& d6 s( }9 W" u6 g9 l(x-x)= 0 ，所以答案係0，is it?

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3 ?9 i, }/ Q+ p( eBingo~

waikong

我係學校個學生會單張見過, [, o8 q/ R2 |9 h) H6 d4 Z
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.........3 u6 d) V* _  O

, I& G0 z# s& f7 M這條問題，貼落吹水版，名副其實. ~) ^) t' a# K5 I( f

4 R& g  X% p- O! p[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]