Which of the gien statement(s) is (are) true? (A) `AsubeB` (B) `A=B=phi` (C) `AcapB!=phi` (D) `BsubeA`

A-B= phi iff

State which of the following is true? phi={phi}

Examine whether the following statement is true or false: phi sube phi( i ) phi sube phi (ii)0in phi (iii) phi={0} (v) {{1},{2},3}={1,{2},3} (vi) {a}in{a,{a},{{a}}}={1,{2},3}

Which of the following statements are correct: (i) {phi}={0} (ii) {a,b,c}={b,a,c} (iii) {1,2,{3}}={{1},2.3}

Let A={phi,{phi},2,{2,phi},3}, which of the following are true ? {:((i),phiinA,(i),phisubA,(iii),{phi}inA),((iv),{phi}subA,(v),2subA,(vi),{2","phi}subA),((vii),{{2}","{3}} subA,(viii),{2","3}!inA, (ix),{phi","2","3}subA.):}

Prove that : Acap(B-A)=phi (ii) (A-B)cap(B-A)=phi (iii) (A-B)cap(AcapB)=phi (iv) phi-A=phi .

Prove that : (i) A sube B,B sube C rArrA sube C (ii) A sube phi, hArr A = phi

Prove that A cap (A cup B)'=phi .

If A and B are two sets satisfying A-B=B-A , then which one of the following is correct? (a) A=phi(b)A nn B=phi(d) None of these (c)A=B