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a) prove: If A is infertile, then det(A^-1)=1/det(A) and b) prove if A is invertible then adj(A) is invertable and [adj(A)]^-1= 1/det(A) A=adj(A^-1)
a) prove: If A is infertile, then det(A^-1)=1/det(A) and b) prove if A is invertible then adj(A) is invertable and [adj(A)]^-1= 1/det(A) A=adj(A^-1)
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Trigonometry A Unit Circle Approach
Authors: Michael Sullivan
10th Edition
0321999347, 9780321999344
