Question

they all are one mark question
and they are seperate​

Answer 1

Answer:

1){1}

2)0 since it is an empty set

3)B since B is the super set

4)A-B consisit of those elements which are contained in set A but are not present in set B

or{x : x € A but not B } .

5)P(A)={pi,{1},{2},{1,2}}

Answer 2

kindly refer to the attachment ......