HW 1:   I. 1.16-1.19, 1.24, 1.37,                      graded:1.17
HW 2:   I. 2.15-2.22, 2.25,                              graded:2.19,2.22
HW 3:   I. 3.15-3.17                                       graded:3.15 e,f,3.17
HW 4:   II.1.1-2; II.2.10, 11, 13                      graded all
HW 5:   II.2.15, 17, 20, 24, 37;                        graded all
    Xcredit:  use triangle inequality to show that
            ||u-v|| > = ||u|| - ||v||;
    Suggested problems, too: 2.14, 19, 21, 32, 33
HW 6:  III.1.7-9 and the following
    Problem: Determine the RREF of  the 2 x 2 matrix

                |   cos(theta)    sin(theta) |
                | -sin(theta)    cos(theta) |

where theta is a real number.
Graded: III 1.9
HW 7: P1,P2 and II.1.18-1-20

HW #8:  I 1.26,27,29,30
HW #9:  I 2.20, 2.22, 2.24, 2.25, graded: 2.20, 2.22
HW #10: II 1.18, 19, 25, 33, page 109, graded: 1.18, 1.25
Also Recommended: 1.16, 1.17, 1.23, 1.28 pag. 117; part of them - done in class.
HW #11: P1-P5; III 2.15, 2.17 a,b; 2.22, page 123, graded: P2, P3
HW #12: 3.16- 3.24, 3.26, pag. 129, due this Friday 22 February
HW #13: Chapter Three, I. 1.10, 1.11, 1.13, 1.14, due Friday 1 March
HW #14: I.2.8, I.2.12; II.1.17-1.19, 1.23, due Friday 1 March
HW #15 : 2.22-2.24, 2.30, due Friday 8 March, about Range and Null space of a linear map, graded: all;
HW #16 : 1.14, 1.15, 1.22, 1.26, due Wed 20 March; graded: 1.14, 1.15;

HW # 17, page 209, due Monday, 2.9 c), 2.10 b), 2.12, 2.13; - graded: 2.9,10,13
HW # 18, page 220: 2.18 - graded.
HW # 19, due Friday 5 April: 1.6, 1.7 , page 241, graded: all.
HW # 20, due Friday 5 April: VI.I 1.7,1.8 (pag.253); VI.II: 2.9 c), 2.10 a,b, 2.11, 2.16
HW #21, Due Friday 12 April: pag. 297, 1.1-1.8, one question per problem. Graded all.
HW #22, Due as above: pag. 302:2.7-2.9, 2.13, pag.323: 1.8,1.9,1.29 a,b; pag.329: 1.14. Graded all.
HW #23 3.20-3.24, pag. 364; graded all.