The full SVD of a matrix A Rmx* is given by A = UEVT where U CR and VCR are orthogonal, and CRmx* has zero entries off its diagonal and has the singular values of A on its principal diagonal. If A is an n by n matrix, then the full SVD of A will look like A = UZVT where U, E, and V are n by n matrices. Part A An n by n matrix A is said to be invertible if there is an n by n matrix A- that satisfies A A = AA- = I. If rank(A) = n, use the full singular value decomposition of A to prove that A is invertible. Part B If A is invertible, prove that det(A) 0 using the multiplicative rule of determinants. Part C If det (A) + 0, prove that rank(A) = n using the full singular value decomposition of A and the multiplicative rule of determinants. Note: This show that invertibility is equivalent to rank(A) = n, which is in turn equivalent to det (A) = 0.