If AAA and BBB are invertible matrices, which of the following is true?
(AB)−1=A−1B−1(AB)^{-1} = A^{-1}B^{-1}(AB)−1=A−1B−1
(AB)−1=B−1A−1(AB)^{-1} = B^{-1}A^{-1}(AB)−1=B−1A−1
(A+B)−1=A−1+B−1(A+B)^{-1} = A^{-1} + B^{-1}(A+B)−1=A−1+B−1
(AB)−1=(AB)T(AB)^{-1} = (AB)^T(AB)−1=(AB)T