14. What decimal value is required to produce an output at X in this circuit?
15. The figure below shows the block diagram of a single bit magnitude comparator. This comparator compares the two bits and produces one of the 3 outputs as L (A<B), E (A=B), or G (A>B). Complete the truth table for the L, E, and G outputs.
17. Simplify the output expression for the Karnaugh map below.