| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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5 \. o: q4 |, N3 H(x - a) = x - a
- b4 u" k/ {' o' i8 [' s7 K6 ^(x - a) (x - b) = x^2 – ax – bx + ab9 S. h* s# H: m0 g1 R! f! R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# c- F/ `( Q1 J( Q2 ]; @(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd4 H: {- H# S3 X( A. a4 H/ I
如此種推，# h0 I% O/ _& D" A% R! M
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???  b% u; u) q& x! Z

) j# z4 @3 j# }" C% p3 _7 C[ 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:, J+ k9 k2 `( _+ [
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc8 Q: t0 r6 P/ N' R3 X1 l* z2 W' I

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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:
/ c) K9 @( i/ R* w! _  n1 w& i, _咁難既=.="
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6 C2 n; C) L6 x% |4 Z( W7 G[ 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:
4 _3 g* b" Y0 T& k- R  V第一個答中有獎, E3 a, w- u. G( e8 j
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(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:9 Z$ G  z! Y/ p0 w" W; H
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1 I$ h1 }0 Y) h: c" j- a(x-x)= 0 ，所以答案係0，is it?

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! @( J- q: y, F5 j& l! T唔似a.math題4 @: b  d  W: q2 L" C( ]
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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# p* `/ e# H7 F4 \( u(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過% i2 q. P8 `9 d* S4 _7 K! X- 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.........9 }7 ?7 a4 {. |; \! r0 e5 n3 a
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這條問題，貼落吹水版，名副其實
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8 ?5 |+ \6 ]" c' y  P[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]