8. Prove the identity of each of the following Boolean equations, using algebraic manipulation: a). AB+BC + AB + BC = 1 b). XY + YZ + XZ + XY + YZ = XY +XZ +YZ 9. Simplify the Boolean expression to an expression containing a minimum number of iterals: ABD ACD + BD 10. Find the complement of the following expression: (A+B +C)(AB+C)A+BC)