Find a Matrix P such that PT AP orthogonally Diagonalizes A. Verify that PTAP gives the proper diagonal Form. Find a matrix P such that PTAP orthogonally diagonalizes A. Verify that PTAP gives the proper diagonal form. (Enter each matrix in the form [[row 1], [row 2], ...), where each row is a comma-separated list.) A [-6-120-120-120-126]