18. If A and I + A are k x k nonsingular matrices, show that (A +...
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18. If A and I + A are k x k nonsingular matrices, show that
(A + I)-1 + (A-1 + I)-1 = I.
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Related Book For 
Matrices With Applications In Statistics
ISBN: 9780534980382
2nd Edition
Authors: Franklin A Graybill
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