" 0.रिक्त Set of "A" .के Prove for "(A')'=A

Use logical method to prove the following : For any set A prove that (A')' = A

Use the properties of sets to prove that for all the sets A and B, A - (AcapB)=A-B

For any set A and B prove that : (A-B)uuB=AuuB .

For any two sets A and B prove that A nn (AuuB)=A

For any sets A, B, using properties of sets, prove that: A-(A nn B)=A-B

Applying Set Algebra, prove the : Acup(B-A) =AcupB

For all sets A and B , prove that (A-B)uu(AcapB)=A.

Fill in the blank. रिक्त स्थान की पूर्ति करें | The average of the first 101______ numbers is equal to 102. पहली 101______ संख्याओं का औसत 102 के बराबर होगा |

You are given two sets such that a set is not a subset of the other. If you have to prove this , how do you prove?