Simplify the following functions containing Don't cares and implement using NAND gates only a. FIA,B.C,D)-E m (2,9,10,12,13) d 1,5,14) b. FNA,B,C,D)-2 m (13,6,7) +d(4,9,11) c. F(A,B,C,D,E) = m (3,1 1,12,19,23,29) +d(5,7,1327,28) Determine which of the following functions are equivalent: HA. B. C. D) ABD+ AB+ABC s(A, B. C, D) BABD+ACD+ABC f,(A, B,C, D,-AC + ABCD + ABD + BCD fs(A. B. C. D)-(B + D)(A + B)(A + )