50 - Some geometric examples
40:07
51 - Properties of Ker(T) and Im(T)
42:07
54 - Matrix representation of linear maps
37:19
48 - Linear maps
1:00:27
55 - Matrix representation of linear maps (continued)
34:28
49 - Ker(T) and Im(T)
25:18
52 - The rank of T
29:22
25 - Direct sums of subspaces
11:32