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1#
發表於 2007-4-18 01:26 PM
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| TriTri | A-Math 加分題 |
第一個答中有獎
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(x - a) = x - a
1 ]5 I) E- k4 K0 z4 c(x - a) (x - b) = x^2 – ax – bx + ab
1 h( x: B. Q3 C2 t+ O% ^- F(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc, T7 s9 f+ M: ]- Z3 `
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
( g# F8 g, w( B+ H如此種推,9 ~" {# K/ |& Z* h" \
(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 ] |
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