(New page: If n=2 and a is a perfect square, for example 9, then <math>Q(9^{1/2}) = Q(3)</math> which is a degree one extension over Q, not degree 2.) |
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Latest revision as of 21:36, 3 December 2008
If n=2 and a is a perfect square, for example 9, then $ Q(9^{1/2}) = Q(3) $ which is a degree one extension over Q, not degree 2.
