MCQ
यदि $\left|\begin{array}{cc}\text {-x} & 2 \\ 5 & 1\end{array}\right|=\left|\begin{array}{ll}3 & 1 \\ 4 & 2\end{array}\right|$ तो $\text {x}$ का मान होगा-
- A12
- B3
- C-12
- D-3
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