To simplify the Boolean functions using three-variable maps, we can use Karnaugh maps. Let's simplify each function one by one:
1. F(x, y, z) = Σ(0, 2, 4, 5)
The Karnaugh map for this function is as follows:
\[
\begin{array}{c|ccc}
\backslashbox{yz}{x} & 0 & 1 \\
\hline
0 & 1 & 0 \\
1 & 1 & 1 \\
\end{array}
\]
From the Karnaugh map, we can see that the simplified expression is:
F(x, y, z) = x'z + yz
2. F(x, y, z) = Σ(0, 1, 2, 3, 5)
The Karnaugh map for this function is as follows:
\[
\begin{array}{c|ccc}
\backslashbox{yz}{x} & 0 & 1 \\
\hline
0 & 1 & 1 \\
1 & 1 & 1 \\
\end{array}
\]
From the Karnaugh map, we can see that the simplified expression is:
F(x, y, z) = 1
3. F(x, y, z) = Σ(2, 3, 4, 5)
The Karnaugh map for this function is as follows:
\[
\begin{array}{c|ccc}
\backslashbox{yz}{x} & 0 & 1 \\
\hline
0 & 0 & 1 \\
1 & 1 & 1 \\
\end{array}
\]
From the Karnaugh map, we can see that the simplified expression is:
F(x, y, z) = x + yz
4. F(x, y, z) = Σ(1, 2, 3, 7)
The Karnaugh map for this function is as follows:
\[
\begin{array}{c|ccc}
\backslashbox{yz}{x} & 0 & 1 \\
\hline
0 & 0 & 1 \\
1 & 1 & 1 \\
\end{array}
\]
From the Karnaugh map, we can see that the simplified expression is:
F(x, y, z) = x + y + z
Now, let's draw the circuit diagram for each simplified Boolean function using logic gate circuits:
1. F(x, y, z) = x'z + yz
\[
\begin{array}{ccc}
& & \\
& \begin{array}{c}
\text{OR} \\
\downarrow \\
x'z + yz
\end{array} & \\
& & \\
\begin{array}{c}
\text{NOT} \\
\downarrow \\
x'
\end{array} & & \begin{array}{c}
\text{AND} \\
\downarrow \\
z
\end{array} \\
& & \\
\begin{array}{c}
\text{AND} \\
\downarrow \\
y
\end{array} & &
\end{array}
\]
2. F(x, y, z) = 1
In this case, the output is always 1, so the circuit diagram would only consist of a constant 1 output.
3. F(x, y, z) = x + yz
\[
\begin{array}{ccc}
& & \\
& \begin{array}{c}
\text{OR} \\
\downarrow \\
x + yz
\end{array} & \\
& & \\
\begin{array}{c}
\text{AND} \\
\downarrow \\
y
\end{array} & & \begin{array}{c}
\text{AND} \\
\downarrow \\
z
\end{array} \\
& & \\
\end{array}
\]
4. F(x, y, z) = x + y + z
\[
\begin{array}{ccc}
& & \\
& \begin{array}{c}
\text{OR} \\
\downarrow \\
x + y + z
\end{array} & \\
& & \\
\begin{array}{c}
\text{AND} \\
\downarrow \\
y
\end{array} & & \begin{array}{c}
\text{AND} \\
\downarrow \\
z
\end{array} \\
& & \\
\begin{array}{c}
\text{NOT} \\
\downarrow \\
x
\end{array} & & \\
& & \\
\end{array}
\]
These are the simplified Boolean functions and their corresponding circuit diagrams using logic gate circuits.