A) OR gate
B) NOT gate
C) AND gate
D) NAND gate
Correct Answer: A
Solution :
[a] The final boolean expression is, \[X=\overline{(\overline{A}\,.\,\overline{B})}=\overline{{\bar{A}}}+\overline{{\bar{B}}}=A+B\]\[\Rightarrow \] OR gate
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