for the square matrix A can

(I + A)^-1 be expanded or simplified. is it true (I + A)^-1 = A^-1 - I

where I is the identity matrix

thanks to anyone who can help

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- Nov 14th 2007, 12:18 PMsmilermatrix algebra
for the square matrix A can

(I + A)^-1 be expanded or simplified. is it true (I + A)^-1 = A^-1 - I

where I is the identity matrix

thanks to anyone who can help - Nov 14th 2007, 12:23 PMtopsquark