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प्रश्न
Using \[X=A^{-1}B\] for \[2x+5y=1\] and \[3x+2y=7\], what is \[X\]?
पर्याय
\[\begin{bmatrix}3\\-1\end{bmatrix}\]
\[\begin{bmatrix}-3\\1\end{bmatrix}\]
\[\begin{bmatrix}7\\1\end{bmatrix}\]
\[\begin{bmatrix}1\\3\end{bmatrix}\]
MCQ
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उत्तर
Multiplication gives \[X=-\frac1{11}\begin{bmatrix}-33\\11\end{bmatrix}=\begin{bmatrix}3\\-1\end{bmatrix}.\] Therefore, \(x=3\) and \(y=-1\).
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