7645 1. Using Boolean algebra, simplify the following expressions. F1 = BC + (A + B + 7) + ABCD F2 = ABCD + AB(CD) + (AB) CD F3 = X7Z + XYZ + WXY + WXY + WXY F4 = A + BIC + D(B+C)] Figure 1 7400 NAND DIP a. Build the Truth Table for F and F4 functions. b. Draw the circuit diagram for both unsimplified and simplified equations of F2, and F3 c. How many 7404, 7408, and 7432 chips do you need to implement the simplified and unsimplified circuit of F1, F2, F3 and F4