| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎8 H* i( ~  X) U; h" F
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(x - a) = x - a
4 B+ Q/ k5 m4 X0 ~+ |' \(x - a) (x - b) = x^2 – ax – bx + ab
2 d3 Z) k+ r3 {8 V1 G6 ~(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc9 w% x* ~6 Y: J/ u. P
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
9 Y# T3 F9 m" a# m如此種推，
9 t2 Q+ i5 U% r' P% y" h(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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. C& V/ Y  e, o$ A! ~3 Y[ 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:* K' {5 l6 A1 u$ K* Z. @
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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. `' i* |* _6 s0 s# X; q; q, Y[ 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:
; n. [( B1 u& o& P咁難既=.="
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( ?( P2 O; k( s9 \8 {: G[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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" d1 C# u( m* t" U) V! uThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
3 g$ H* y+ H9 `4 X3 K9 F第一個答中有獎
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9 R8 \, P8 A3 f" y(x - ...

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- S( U, R7 M4 ^, J6 n9 n(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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唔似a.math題9 F5 v5 j9 J6 h" T2 X
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:+ d( e4 E. s. p+ ]

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(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6 m; ^1 ^6 E/ c, C1 t/ d* m6 u
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.........0 f$ X* C* h5 g3 ^" C/ e+ J

2 N: T0 d2 W% z6 i1 h0 W4 N這條問題，貼落吹水版，名副其實! u$ h; y# ?; y2 T

% F9 p' Q4 Z2 s7 k9 n[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]