Practice Exercise 21. Simplify following Boolean Functions:a) F = xy + x’y + xy’b) F = x + x’yc) F = (x + y)(x +y’)d) F = xy + x’z + yze) F = xyz + x’y + xyz’2. What does the circuit in Figure 1 do? Figure 1: Truth-table (a) and circuit (b) for majority of three circuit3.What is Exclusive or function? Implement it with only Nand gates.Figure2.: Exclusive or - three implementationsImplement it with only Nor gates.4. Prove that by truth table.5. How would you use two xors, two inverter/nots, and an and to create a circuit to compare two two-bit
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