2. F(4,B,C,D) 5%n(01,2,45,6,8910,1213) by Implement the NOR gates. function using all 3. Implement the Boolean function F(A,B,C,D)m(1,3,411,12,13,14,15) with a 4-1 line multiplexer and external gates. (Hint: connect inputs A and B to the selection lines. The input requirements for the four data lines will be a function of the variables C and D. The values of these variables are obtained by expressing F as a function of C and D for each of the four cases when AB-00, 01, 10, 11. These functions must be implemented with extemal gates