Math Help Forum: circuit diagram

I NEED HELP!!!

Derive the Boolean expression for the following circuit diagram. Draw the Truth Table of the resulting circuit diagram.

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Write the function expression for the following circuit diagram:

[IMG]

AB+C? far as i got

Originally Posted by Phrass

Either the link is down or you have done it wrong.

-Dan

it's live now

Starting from the left, look at each logic gate's inputs. For the leftmost gates, these inputs are labeled by variables (A, B, or C). Over the line that leaves the gate on the right-hand side, write the inputs joined by the gate's operation.

For example, in the first picture, the top-left gate is AND. Its inputs are A, B, and C. So, over the line that leaves the gate on the right, write A AND B AND C, or A + B + C, depending on your notation. Repeat this moving from left to right.

so therefore the 1 diagram would be something like A+B+C(B'C')A+A'B'=F

In diagram 1, I get F = ABC + (A' + B') + AB'C'.