Matrix Proof: Determinants
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Please see the attached file for the full problem description:
1. Show that if   0, then A^-1=1/ [ d -b ]
[ -c a ] .
Help:
: is the determinant A
[ d -b]
[ -c a ] : is a 2 x 2 matrices
https://brainmass.com/math/matrices/matrix-proof-determinants-12701
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Solution Summary
A proof for a matrix determinant is provided. The solution is detailed and well presented.
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