徐小培 发表于 2010-2-4 20:07 ) b8 J! G( ^' e' x/ y$ e. iSolve[8*x^(3/2/n) - 8*x^(-3/2/n) == 63, x] 1 p1 [& b* [8 B0 C8 fSolve[2*(x/a)^(1/2) + 3*(a/x)^(1/2) == b/a + 6*a/b, x]