Hey, I've been trying to prove that the inverse of the transpose of a matrix, is equal to the transpose of the inverse of a matrix, i.e.
(also, some help on how to use TEX would be useful...)
Are you allowed to assume that ?
If so, take the transpose of and postmultiply by
For the LaTex input, use the Go Advanced option and 'press' the button and between the two [Tex] brackets type the line in as
(A^{T})^{(-1)}=(A^{(-1)})^{T}.
The ^ symbol translates as 'to the power of', and the power is then closed within the curley brackets.