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Standard XII
Physics
Logic Gates
Question
If
A
=
B
=
1
, then in terms of Boolean algebra the value of
A
.
B
+
A
is not equal to
B
.
A
+
B
B
B
+
A
¯
A
.
B
A
B
.
A
+
B
B
B
C
B
+
A
D
¯
A
.
B
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Solution
Verified by Toppr
For
A
=
B
=
1
,
⇒
A
.
B
+
B
=
1.1
+
1
=
1
+
1
=
1
Therefore,
(A)
B
.
A
+
B
=
1.1
+
1
=
1
+
1
=
1
(B)
B
+
A
=
1
+
1
=
1
(C)
B
=
1
(D)
¯
A
.
B
=
1.1
+
1
=
¯
1
.1
=
0.1
=
0
Hence, option D is the correct answer.
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