Question

In each of the following, determine the subspace of the |R^(2*2) consisting of all matrices that commute with the fiven matrix:

(a) [1 0 ]
[0 -1]

(b) a1 = (1,0)^T, a2=(0,0)^T

(c) a1=(1,0)^T, a2=(1,1)^T

(d) a1=(1,1)^T , a2=(1,1)^T