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GATE EE 1999
MCQ (Single Correct Answer)
+2
-0.6
The logic function $$f = \overline {\left( {x.\overline y } \right) + \left( {\overline x .y} \right)} $$ is the same as
A
$$f = \left( {x + y} \right)\left( {\overline x + \overline y } \right)$$
B
$$f = \overline {\left( {\overline x + \overline y } \right) + \left( {x + y} \right)} $$
C
$$f = \left( {\overline x .\overline y } \right) + \left( {\overline x .\overline y } \right)$$
D
None of $$(A),(B),(C)$$
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