Find the cofactor of element -3 in the determinant Δ=\(\begin{vmatrix}1&4&4\\-3&5&9\\2&1&2\end{vmatrix}\).
Posted: Wed Jul 13, 2022 8:07 pm
a) -4
b) 4
c) -5
d) -3
b) 4
c) -5
d) -3
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