Find the eigenvalues and the corresponding eigenspaces for each of the following matrices: e.
[[1,1],[-2,3]]
f.
[[0,1,0],[0,0,1],[0,0,0]]
g.
[[1,1,1],[0,2,1],[0,0,1]]
h.
[[1,2,1],[0,3,1],[0,5,-1]]
i.
[[4,-5,1],[1,0,-1],[0,1,-1]]