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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0 U$ m2 }" f. ]+ A6 O0 T3 B& I
) r1 t. ~( ]0 p( y* H; h(x - a) = x - a* j/ J8 ?, ]# O" T; v6 x) @
(x - a) (x - b) = x^2 – ax – bx + ab0 H- k& X, z" H2 R* }, m2 @
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc0 |) }) P9 P) p" u3 a J
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
% Z6 N* ^' e+ k如此種推,% W# W6 i) \7 f! A( K
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???% F8 u$ S. m6 d9 Q. {2 S
7 }8 r, A( S2 t% x3 x# z
[ Last edited by Triangel on 2007-4-18 at 01:52 PM ] |
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