Given `A=([0,0,3,-2],[0,0,3,-3],[1,-2,3,-2])` , find an invertible matrix U such that A=UR where R is the reduced row echelon form of A:

Using Gaussian reduction the reduced row echelon form of A is :

`"rref"A=([1,-2,0,0],[0,0,1,0],[0,0,0,1])`

U has to be a 3x3...

(The entire section contains 123 words.)

## Unlock This Answer Now

Start your **48-hour free trial** to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Already a member? Log in here.

**Further Reading**