MCQ
यदि $\left[\begin{array}{cc}x & 2 \\ 18 & x\end{array}\right]=\left[\begin{array}{cc}6 & 2 \\ 18 & 6\end{array}\right]$ तो x बराबर है-
- A6
- ✓$\pm 6$
- C$-6$
- D$0$
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