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1. |
Given a matrix A= ( begin{bmatrix}2&3&9 3&9&6 1&6&7 end{bmatrix} ), which of the elements aij follows the condition i=j. |
A. | 9, 9, 1 |
B. | 2, 9, 7 |
C. | 2, 3, 9 |
D. | 2, 3, 1 |
Answer» C. 2, 3, 9 | |