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Unformatted text preview: 1 11 , b = 3 5 . Find the error  bA x *  . 5. (a) Use the classical adjoint of A = 1 0 11 1 0 2 3 , ﬁnd the inverse A1 . (b) Use your answer in (a) to ﬁnd the solution of the liear system ± ± ± ± ± ± ± x 1 + x 3 = 5x 1 + x 2 = 8 2 x 2 + 3 x 3 = 1 ± ± ± ± ± ± ± . 6. Use the determinant to ﬁnd out for which values of the constant k the matrix A = cos k 1sin k 2 sin k cos k is invertible....
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 Fall '08
 Conger
 Linear Algebra, Real Numbers, linear transformation, Standard basis, matrix cos, Ax 

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