The logic expression which is not equal to $1$ in Boolean algebra is

Question

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Answer 1

$A + 1$ is addition of $1$ to value of $A$ , which can be any of $0$ and $1$ . This expression would always given ' $1$ ' as the output since addition of $1$ to anything gives $1$ .
$A . \overset{ˉ}{A}$ gives $0$ always because whatever value $A$ assumes, $\overset{ˉ}{A}$ assumes the other and they give $0$ under AND operation.
$A + \overset{ˉ}{A}$ would always give value $1$ because whatever value $A$ assumes, $\overset{ˉ}{A}$ assumes the other and they give $1$ under OR operation.
$\overline{\overline{A . A}} = A . A = A$ which is might be $1$ for value of $A = 1$ .

Answer 2

A + 1

is addition of

1

to value of

A

, which can be any of

0

and

1

. This expression would always given '

1

' as the output since addition of

1

to anything gives

1

.

A . \overset{ˉ}{A}

gives

0

always because whatever value

A

assumes,

\overset{ˉ}{A}

assumes the other and they give

0

under AND operation.

A + \overset{ˉ}{A}

would always give value

1

because whatever value

A

assumes,

\overset{ˉ}{A}

assumes the other and they give

1

under OR operation.

\overline{\overline{A . A}} = A . A = A

which is might be

1

for value of

A = 1

.

The logic expression which is not equal to $1$ in Boolean algebra is

$A + 1$

$A . \overset{ˉ}{A}$

$A + \overset{ˉ}{A}$

$\overline{\overline{A + A}}$

The logic expression which is NOT true in Boolean algebra is

In the Boolean algebra : $A + B =$

The following is NOT equal to $0$ in the Boolean algebra is

In the Boolean algebra: $\overline{A + B}$ is equal to:

In the Boolean algebra, of the following one which is not equal to $A$ is

Revise with Concepts

Basic Knowledge of Logic Gates: Basic Gates

The logic expression which is not equal to 1 in Boolean algebra is

A+1

A.Aˉ

A+Aˉ

A+A​​

The logic expression which is NOT true in Boolean algebra is

In the Boolean algebra : A+B=

The following is NOT equal to 0 in the Boolean algebra is

In the Boolean algebra: A+B​ is equal to:

In the Boolean algebra, of the following one which is not equal to A is

Revise with Concepts

Basic Knowledge of Logic Gates: Basic Gates

The logic expression which is not equal to $1$ in Boolean algebra is

$A + 1$

$A . \overset{ˉ}{A}$

$A + \overset{ˉ}{A}$

$\overline{\overline{A + A}}$

In the Boolean algebra : $A + B =$

The following is NOT equal to $0$ in the Boolean algebra is

In the Boolean algebra: $\overline{A + B}$ is equal to:

In the Boolean algebra, of the following one which is not equal to $A$ is