I need help with proving that:
$(A + BC)^{-1} = A^{-1} - A^{-1}B(I_m + CA^{-1}B)^{-1}CA^{-1}$
when $I_m + CA^{-1}B$ is invertible.
2026-04-24 17:59:03.1777053543
Proof of the Sherman-Morrison-Woodbury formula
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