ザンギョウおわり。ビール

来源: 于 2009-02-22 05:39:26 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

-((3(2n-1)(6n+n²+1)+24n_{a}(n-2))/(2(n+7)²(n+1)²))(D-c)²
+((n_{b}(n+1)(-3n-4n²+n³+78)(D-c)+4n_{a}n_{b}(n+25)(n-3)(D-D8321;)-12n_{b}(n-1)(n+7)(n_{a}D+n_{b}D8321;-nc))/(n(n+1)(n-1)(n+7)²))(c8321;-c)
+((n_{b}²(n-3)(n-1)(7n-35n²+n³+187)+24n_{a}n_{b}n(n+1)(n-3)²)/(2n²(n+1)(n-1)²(n+7)²))(c8321;-c)²
-((12n_{b}(n-2))/((n+7)²(n+1)²))(D8321;-c)²