Write the Boolean expression of a given logic circuit

[Fatima Hasan]

Homework Statement

In the logic circuit shown below , write the Boolean expression for the output function X . Which gate(s) could be removed without affecting the function X ?

Homework Equations

-

The Attempt at a Solution

[/B]

So , we can get rid of $A \overline{B} C$ . gate # 4. Right ?

 

[gneill]

So , we can get rid of $A \overline{B} C$ . gate # 4. Right ?

Right!

 

[LCKurtz]

Why not also get rid of gate #5?