My text is not helping at all and the wikipedia explanations of the concepts: nullspace and range are way over my head.

Given A is a 3x3 matrix

0 1 0

0 0 1

0 0 0

and B is also a 3x3 matrix

0 0 0

1 0 0

0 1 0

specify the nullspace of A and B, and the range of A and B

Thanks