For this problem I got that [1, 5^1/3, 5^2/3] formed the basis for Q(5^1/3). That is to say that the elements can be formed by a linear combination: a_1 + a_2*5^1/3 + a_3*5^2/3. --Jniederh 20:21, 15 April 2009 (UTC)
