1. In Logisim implement an 8-to-1 MUX using 2 4-to-1 MUXes and a 2-to-1 MUX.
2. In Logisim implement an 8-to-1 MUX using 4 2-to-1 MUXes and a 4-to-1 MUX.
3. In Logisim implement a circuit similar to the one in figure 8-10, but which produces output which is the opposite of the input switch (e.g. the LEDs are 0 when the switch is 1, and 1 when the switch is 0). Change the program in the breadboard to match this new logic.