- #1
Oster
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Prove that the field Q(√2,√3,u) where u^2=(9-5√3)(2√2) is normal over Q.
I'm supposed to show that this field is the splitting field of some polynomial over Q. u is clearly algebraic over Q. Do i just take the higher powers of u and try to find the minimal polynomial over Q or is there a smarter way to do this?
I'm supposed to show that this field is the splitting field of some polynomial over Q. u is clearly algebraic over Q. Do i just take the higher powers of u and try to find the minimal polynomial over Q or is there a smarter way to do this?