Mathematics, 08.01.2020 23:31 rasbuurry

Show that for a feild f, the set s of all matrices of
theform
for a, b in f is a right ideal but not a left ideal
of.
that is, show that s is a subring closed undermultiplication on the
right by any element of
, but is not closed under leftmultiplication.

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Show that for a feild f, the set s of all matrices of
theform
for a, b in f is a right i...