Summary: LINEAR ALGEBRA: REVIEW PLUS NEW
MATH 2574H, SPRING 2012
UNIVERSITY OF MINNESOTA
GREG W. ANDERSON
Solve by whatever methods you know about, both by hand and also with the
help of your calculator.
(If you don't know enough methods today you will for sure in three weeks.)
Two-by-two (unique solution)
x + 2y = 3
4x + 5y = 6
Two-by-two (no solution)
x + 2y = 3
2x + 4y = 3.
Two-by-two (one parameter family of solutions)
x + 2y = 3
2x + 4y = 6.
Triangular three-by-three (unique solution)
x + y + z = 1
y + z = 2
z = 3

Source: Anderson, Greg W. - School of Mathematics, University of Minnesota

Collections: Mathematics