Let H = set of a matrix [a b] such that a,d,b are in R, and ad does not equal.

[0 d]

0. Is H a normal subgroup of GL(2,R)? GL(2,R) is the set of 2X2 matrices with real entries and nonzero determinant .

Printable View

- Nov 9th 2008, 09:22 PMJuancd08Normal Subgroup.
Let H = set of a matrix [a b] such that a,d,b are in R, and ad does not equal.

[0 d]

0. Is H a normal subgroup of GL(2,R)? GL(2,R) is the set of 2X2 matrices with real entries and nonzero determinant .