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???

Results 1 to 2 of 2

- Aug 8th 2009, 11:45 PM #1

- Joined
- Aug 2009
- Posts
- 14

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, 05:39 AM #2

- Joined
- Nov 2005
- From
- someplace
- Posts
- 14,972
- Thanks
- 5