If \( \left[\begin{array}{cc}3 & -2 \\ 3 & 0 \\ 2 & 4\end{array}\right]\left[\begin{array}{ll}y ...

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If \( \left[\begin{array}{cc}3 & -2 \\ 3 & 0 \\ 2 & 4\end{array}\right]\left[\begin{array}{ll}y & y \\ x & x\end{array}\right]=\left[\begin{array}{cc}3 & 3 \\ 3 y & 3 y \\ 10 & 10\end{array}\right] \), then the value of \( x y \)
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