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Let \( A=\left[\begin{array}{c}3 x^{2} \\ 1 \\ 6 x\end{array}\right], B=\left[\begin{array}{lll}...
Let \( P=\left[\begin{array}{ccc}3 & -1 & -2 \\ 2 & 0 & \alpha \\ 3...
Let \(A=\left[\begin{array}{cc}m & n \\ p & q\end{array}\right], d=|A| \neq 0,|A-d(\oper....
Let \( P=\left[\begin{array}{ccc}1 & 0 & 0 \\ 4 & 1 & 0 \\ 16 & 4 & 1\end{array}\right] \) and \....
Let \( P=\left[\begin{array}{lll}1 & 0 & 0 \\ 3 & 1 & 0 \\ 9 & 3 & ...
Let \( P=\left[\begin{array}{lll}1 & 0 & 0 \\ 3 & 1 & 0 \\ 9 & 3 & ...
Let \( P=\left[\begin{array}{ccc}3 & -1 & -2 \\ 2 & 0 & \alpha \\ 3...
Let \( P=\left[\begin{array}{ccc}1 & 0 & 0 \\ 4 & 1 & 0 \\ 16 & 4 &...
Let \( A=\left[\begin{array}{ccc}0 & 2 q & r \\ p & q & -r \\ p & -...
Let \( P=\left[\begin{array}{ccc}1 & 0 & 0 \\ 4 & 1 & 0 \\ 16 & 4 &...
Let \( P=\left[\begin{array}{lll}1 & 0 & 0 \\ a & 1 & 0 \\ b & c & ...
Let \( A=\left(\begin{array}{ccc}0 & 2 q & r \\ p & q & -r \\ p & -...