please help me with this..

prove that S={2a+bi:a,b ε Z} is not closed multiplication where i= √–1???

and with that

Find the continued fraction expansion of √8 and hence or otherwise show that √8

is irrational???

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- Aug 9th 2009, 12:45 AMgeo2
please help me with this..

prove that S={2a+bi:a,b ε Z} is not closed multiplication where i= √–1???

and with that

Find the continued fraction expansion of √8 and hence or otherwise show that √8

is irrational??? - Aug 9th 2009, 06:39 AMCaptainBlack