Answer to Question #85224 in Linear Algebra for Hardy

Question #85224

Q2. If A= (1 2 6),
4 11 7
9 13 3

(a) Find the minors of 1,2 and 6.
(b) Find the cofactors of 1,2 and 6.
(c) Evaluate |A|.
(d) A^-1

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