I have a matrix and I am supposed to calculate the eigenvalue, eigenvector and then give arithmetic and algebraic multiplicity.I can calculate the eigenvalues and the eigenvectors but I don't know how to calculate the arithmetic and geometric multiplicity. Tried to google it but it was a bit ambiguous for my understanding. The matrix is |2 1| and eigenvalues are 1, 4 and eigenvectors are (-1 1) and (1 2) . |2 3|