(5 points) Supppose A is an invertible nxn matrix and v is an eigenvector of A with associated eigenvalue 4. Convince yourself that v is an eigenvector of the following matrices, and find the associated eigenvalues. a. The matrix A has an eigenvalue b. The matrixA has an eigenvalue C. The matrix A - 31, has an eigenvalue d. The matrix 5A has an eigenvalue