Answer
The truth table is already given, and again there is only one case with
a 1 bit in the output. This occurs in the first row and corresponds to the
Boolean expression
$\overline{a} \cdot \overline{b}$
Given this single subexpression, we can proceed immediately to draw the
circuit diagram:
$$continue\ solution\ by\ see\ the\ following\ image:$$
![](https://gradesaver.s3.amazonaws.com/uploads/solution/02e0ab2e-ac62-4c0e-844d-6acc3ea2ddb0/result_image/1561989093.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJVAXHCSURVZEX5QQ%2F20240727%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240727T020909Z&X-Amz-Expires=900&X-Amz-SignedHeaders=host&X-Amz-Signature=c504c6495e3a645ad1a96bdc296299a79d677d83851a74f99c2c77d342d12fd4)
Work Step by Step
The truth table is already given, and again there is only one case with
a 1 bit in the output. This occurs in the first row and corresponds to the
Boolean expression
$\overline{a} \cdot \overline{b}$
Given this single subexpression, we can proceed immediately to draw the
circuit diagram:
![](https://gradesaver.s3.amazonaws.com/uploads/solution/02e0ab2e-ac62-4c0e-844d-6acc3ea2ddb0/steps_image/small_1561989093.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJVAXHCSURVZEX5QQ%2F20240727%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240727T020909Z&X-Amz-Expires=900&X-Amz-SignedHeaders=host&X-Amz-Signature=2ea6a498883900e6fdd2e12cde99d890ef1e8fae08657fe80a82a69aa34375c5)