3 Given A = |1 2 3 and B=| 4 %3D (a) Compute A², A+B, AB and BA. (b) Find the inverse of matrices AB and BA, if matrices AB and BA are invertible. (c) Find the eigenvalue(s) and the eigenvector(s) of...

Extracted text: 3 Given A = |1 2 3 and B=| 4 %3D (a) Compute A², A+B, AB and BA. (b) Find the inverse of matrices AB and BA, if matrices AB and BA are invertible. (c) Find the eigenvalue(s) and the eigenvector(s) of BA. [ [Note: Please remain your answer in its fractional form, if any.]