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