Which of these is NOT a property of the determinant?
det(AB)=det(A)det(B)\det(AB) = \det(A)\det(B)det(AB)=det(A)det(B)
det(A+B)=det(A)+det(B)\det(A+B) = \det(A) + \det(B)det(A+B)=det(A)+det(B)
det(AT)=det(A)\det(A^T) = \det(A)det(AT)=det(A)
det(I)=1\det(I) = 1det(I)=1