Name__________________________________________
Mathematics 205: Linear Algebra
Fall Semester 2004
David Haines
Quiz #14
October 7
Solve the linear system
−
123
011
001
100
410
123
x =
1
0
1
, taking advantage of the fact that the
coefficient matrix has been factored into the form LU. This means you must first find y that
solves the system Ly =
1
0
1
and then find x by solving the system Ux = y . No credit if you
didn’t find y !