解由A*BA=2BA-8E得(A*-2E)BA=-8E, B=-8(A*-2E)-1A-1 =-8[A(A*-2E)]-1 =-8(AA*-2A)-1 =-8(|A|E-2A)-1 =-8(-2E-2A)-1 =4(E+A)-1 =4[diag(2, -1, 2...