Question

What is the expression for sum propagate in a full adder?

1) A Š• B Š• Cin
2) A Š• B
3) A Š• B Š• 1
4) A Š• B Š• Cin Š• 1

Answer 1

The expression for sum propagate in a full adder is A Š• B Š• 1.

Step-by-step explanation:

In a full adder, the expression for sum propagate is given by the option 3) A Š• B Š• 1.

This expression represents the logical AND operation between A, B, and 1 (which represents the carry-in bit). The Š symbol denotes the binary AND operation.

By taking the logical AND of A, B, and 1, the sum propagate expression determines whether there will be a carry out from the current bit position to the next bit position in the addition process.