For each of the Boolean expressions below, state their domain and indicate what form the expression is in, i.e. non-standard SOP, standard SOP, non-standard POS, standard POS, or none of these.

Is there an easy way to know what ones are Standard and no standard sop and pos.

ii. (A+B)(C+D) iii. AB+A.C iv. ABC+ABC i. A.B ii. (A+B)C iii. AB+AC iv. A+B.C