Show that for plane strain deformation, the response of a dip-slip fault in an elastic layer overlying a Maxwell viscoelastic layer overlying a Maxwell half-space has five independent relaxation modes-that is, show that the determinant is a fifth-order polynomial in s. Hint: One need not do all of the matrix computations. It suffices to write all terms in the appropriate powers of the Laplace transform variable s and then carry out the matrix operations to determine the order of the determinant.