Linear Algebra 1.4PartB

#31a) 0:12 b) 2:32 c) 8:50 #39 11:52 #40 15:28 #43a) 18:27 b) 21:10s

NOTE: 31a) the proper Matrix (A+B)(A-C) is R1 = [0 -1], R2 = [1 0]

Doesn't change the overall answer, but an error is an error.

Linear Algebra - Math 1203 for Mount Royal University (Fall 2015)

Elementary Linear Algebra - Application Version (11th ed.) by Howard Anton & Chris Rorres