| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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7 }1 |) e: `: c0 W& k(x - a) = x - a
: ?: ~! O7 D* _* ^/ o) N. K(x - a) (x - b) = x^2 – ax – bx + ab4 l/ W% k6 C) e2 W) V- f2 L  J! T: p
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc* J. i- O; i6 n! H; p& {' U
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
$ I/ o: U/ Y: h' G+ c如此種推，
. F/ Z! a9 ?8 P6 p- s(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:
$ {9 v$ F/ K* A0 q9 E& [(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc/ n  ]5 C" E/ r9 }

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& g9 R2 `9 d. u8 Q" o[ 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:
: E4 T3 p5 k( H1 W$ E) w咁難既=.="% R1 ?$ C3 m( _+ T6 o
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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:
6 k; k: b( Q! T0 j第一個答中有獎
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. l: n$ M. t% V" n+ l(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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2 O1 R6 A- p' T1 Z8 U+ p# Y/ l7 L2 ?" T3 M+ o
唔似a.math題
# {: k. {0 c+ J6 S0 O2 t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:
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2 ^" D8 ^. l1 E" T1 a) @0 i) x' K* {" w1 I
(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$ c9 E1 l$ X6 t/ P7 g" s
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.........* S7 o& i1 j8 C4 l# L6 A# I
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這條問題，貼落吹水版，名副其實* }# L4 Y3 F( K3 X

# r0 L* c+ P# l6 x1 A' D: _7 o9 h[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]