Read the question very carefully. In the following, if the check box is selected, the value is 1, if it is not selected the value is 0. Now, complete the remaining part of the Truth table for the expression A' + B by clicking on the check boxes.

See attachment for truth table

Explanation:

Required

Complete the table

As a general rule;

A' means Not A and the value will be the opposite of A;

If A = 1, then A' = 0

Also:

A' + B will be 0 if A' and B are 0, otherwise A' + B will be 1

Using the above analysis, we have:

See attachment for truth table

According to the question, only outputs with "1" will be checked.

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plot immersion i am not fully sure with it though