Hi guys, What is the quickest way to find the 4 complex roots of X^4+2=0 ? I'm trying to find the splitting field for this equation over Q. Many thanks in advance. :-) x
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Originally Posted by AAM Hi guys, What is the quickest way to find the 4 complex roots of X^4+2=0 ? I'm trying to find the splitting field for this equation over Q. Many thanks in advance. :-) x . Write -2 in polar form- and use DeMoivre's formula.
you can also write:
Last edited by NonCommAlg; May 18th 2009 at 09:37 PM.
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