Question Number Four: 17 Marks Answer each one of the following questions in the space assigned: 1- Simplify each of the following expressions using boolean algebra identities: I4 Marks] a- AB +A(CD+ CD) [2 Marks] b. (BC#A,D ) ( AB' + CD' )[2 Marks] Optimize (simplify) the following boolean function F together with the don't care conditions d in Product-of-sums using k-map: [3 Marks] 2- E(A,B,C,D) M ( 1.3,4,69, I l ) + d ( 0,2,5,8, 10, 12, 14)