MCQ
If $\text{A}=\displaystyle \left[ \begin{matrix} 1 &\text{amp; 2} \\ 3&\text{amp; 4} \end{matrix} \right],$ then which of the following is not an element of $A ?$
- ✓$0$
- B$1$
- C$2$
- D$3$
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