0 1 Q3) Is A = 1 Unitary? Nilpotent? Idempotent? Positive Semidefi- 0 Nite?(show All Of Your Work)(8 MARKS) Q4) If A Is Positive Semidefinite, And So A Is Unitarily Diagonalizable, That Is 9 A = U DU\", Where U = D Find A (7 MARKS) 10 0 16 0