At this point, for problems that involve row reduction of a matrix, you do not need to show all intermediate steps. Caveats:

- If you do not show intermediate steps, you may lose partial credits in case your answer is incorrect.

- If you do not show intermediate steps, then you must still show the matrix that you start with, and the matrix that you end up with.

=== Hand in solutions to:

Section 4.6: 1bc, 5b, 11b.
Section 4.7: 1bf, 3.
Section 5.1: 1ceg, 4b.

=== Suggested problems: (Do not hand in)

Section 4.6: 13a, 15.
Section 4.7: 4, 6.