RHETOR 115 Lecture 28: Rhet 115 Lecture 28 4.6.2018

Determine which pair of matrices is an inverse pair. a. [0 4 4 0] [0 1/4 1/4 0] b. [4 0 0 4][0 1/4 1/4 0] c. [0 4 4 0] [0 4 4 0] d. [4 4 0 4] [0 -4 -4 4] e. None of these Compute the determine of the given matrix.

[x -4 7 y] + [-1 z -4 4] = [4 -4 3u 6]