Question #1 Design a full adder circuit using only 4x1 multiplexer & NAND gates a use the truth table bi design the circuit Question # 2 design the function F(W,x,y) - Em(0,2,3,6) using one 2x4 decoder & one 4x1 multiplexer connected together. Question # 3 A combinational circuit is specified by the following three Boolean functions: F7 (A, B, C) = {m(0,3,5) F2 (A, B, C) = {m(1,2,6) F3 (A, B, C) = IM(0,1,2,3) Implement the circuit with a 3x8 decoder and external OR gates