Mathematics, 23.08.2019 20:10 fiorentinologan4
Which of the following is not equivalent to the nxn matrix a being invertible? a. the homogeneous system associated to a has a unique solution. b. some non-homogeneous system whose coefficient matrix is a has a unique solution. c. every non-homogeneous system whose coefficient matrix is a is consistent. d. the column space of a is r". e. the linear transformation x h ax is one-to-one.
Answers: 2
to be invertible, its determinant must not be equal to zero, |A| 
0, 
exists if- AC = CA = I, where I is identity matrix.The homogeneous equation with coefficient matrix A has a unique solution: 
is a unique solution
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Which of the following is not equivalent to the nxn matrix a being invertible? a. the homogeneous s...
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