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1. |
Find the minor and cofactor respectively for the element 3 in the determinant Δ=\(\begin{vmatrix}1&5\\3&6\end{vmatrix}\). |
A. | M21=-5, A21=-5 |
B. | M21=5, A21=-5 |
C. | M21=-5, A21=5 |
D. | M21=5, A21=5 |
Answer» C. | |