23、 图路-|||-设矩阵A= -2 0 0 7 1 -3 0 -1 -4 1 B= [ dfrac (1)(1)] =dfrac (1)(4) .-|||-则不正确的是-|||-(4分)-|||-A |-dfrac (1)(6)(A)^3(B)^r|=((-dfrac {1)(6))}^3|A(|)^3|B|=-12-|||-B |(A)^-1(B)^T|=3-|||-C |E+(A)^-1B|=dfrac (5)(3)-|||-D |A|=6