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109年 - 109 國立中山大學_碩士班招生考試_資工系(乙組)：工程數學#105759
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題組內容
II. The four eigenvalue of a 4x4 matrix A are 1, 1, 2, and 3. Please determine the correctness of the following descriptions.
6. The determinant of A is 6.
其他申論題
2..DFT matrix is not a kind of symmetric matrix.
#450113
3. DFT matrix is an unitary matrix.
#450114
4.The DFT is a linear transform.
#450115
5. The orthogonality is not the property of the DFT matrix.
#450116
7. The trace of A is 7.
#450118
8. The rank(A-1)=3, where I is the 4x4 identity matrix.
#450119
9. The determinant of the adjoint matrix At is 6.
#450120
10. The matrix A is a simple matrix.
#450121
11. The row space of A is equal to the row space of B.
#450122
12. The column space of A is equal to the column space of B.
#450123
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