If the matrix A is such that ⎡⎢⎣2−47⎤⎥⎦ [195]then the determinant of A is equal to 0

If the matrix A is such that ⎡⎢⎣2−47⎤⎥⎦ [195]then the de

1.	If the matrix A is such that ⎡⎢⎣2−47⎤⎥⎦ [195]then the determinant of A is equal to 0
Answer» If the matrix A is such that $⎡ ⎢ ⎣ \begin{matrix} 2 - 4 7 \end{matrix} ⎤ ⎥ ⎦$ $[\begin{matrix} 1 & 9 & 5 \end{matrix}]$ then the determinant of A is equal to 0