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.


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