A) \[A\]
B) \[A+B\]
C) \[\overline{A+B}\]
D) \[\overline{A\cdot B}\]
Correct Answer: A
Solution :
\[(\overline{\overline{A}\cdot \overline{B}})\cdot A=(\overline{\overline{A}}+\overline{\overline{B}})\cdot A\] \[=(A+B)\cdot A\] \[=A\cdot A+AB\] \[=A+AB\] \[=A\,(1+B)=A\]You need to login to perform this action.
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