Question
यदि $\left[\begin{array}{lll} x & -5 & -1 \end{array}\right] \left[\begin{array}{lll} 1 & 0 & 2 \\ 0 & 2 & 1 \\ 2 & 0 & 3 \end{array}\right] \left[\begin{array}{l} x \\ 4 \\ 1 \end{array}\right] = 0$ है तो $x$ का मान ज्ञात कीजिए।
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