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Which formula gives the inverse of a non-singular matrix A by the adjoint method?
A(1/|A|) times adj A
B|A| times adj A
Cadj A divided by n
DA times (adj A)
Answer & Solution
Correct answer: A. (1/|A|) times adj A
Dividing A(adj A) = |A| I by |A| shows that A inverse is adj A divided by |A|.
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