Logic circuit that finds the 2's complement of a 4-bit binary number with NAND (AND-INVERT) gates. design it. You can show input variables and not with separate labels. (please draw the gates on a paper and send a picture.

3. Draw the combinational circuit that directly implements the Boolean expression on logisim/circuit lab. If drawn, no extra credit. No excuses. 15 points + 10 points extra credit if drawn and labeled with circuit drawing tools. a. xyz + (y' + z) b. x + xy + y'z c. (x (y z )) + (xz)'

Please see question attached.

Please design a circuit that has a red led and a blue led and simulates a police light (i.e: The red led turns on and off periodically and it gives light when the blue one doesn't, then it turns off when the blue one turns on.)