Let R be a ring: since R is an abelian group under +, na has meaning for us for n in Z, a in R. Show that (na)(mb)=(nm)(ab) if n,m are integers and a,b in R.

Please show steps. Thanks!

Printable View

- April 24th 2009, 11:24 AMmpryalquotient Rings 1
Let R be a ring: since R is an abelian group under +, na has meaning for us for n in Z, a in R. Show that (na)(mb)=(nm)(ab) if n,m are integers and a,b in R.

Please show steps. Thanks! - April 24th 2009, 11:33 AMJhevon