Questions and Exercises 1. What is the function of the BI/RBO' input on the 7447? Is it active high or active low? 2. Create the Boolean logic equation for the A output of the 7447 as a function of D3..DO. Do not bother minimizing your equation. 3. What is the function of the LT input on the 7447? Should it be connected to a 1 or a 0 for this exercise? 4. Under what condition is 74LS283 output Cout (labeled CYO on the symbol) a logic 1? 5. How would you have to wire the four B inputs of the 74LS283 in part 3 if the Cin (CYI) input were connected to Vcc (logic 1) instead of Ground (logic 0)? 6. What might be the consequence of leaving the Cin (CYI) input floating (i.e. unconnected)