" 8."A sub B hArr A uu B=B" ."

If A and B are subsets of the universal set U, then slow that (i) A sub A uu B , (ii) A sub B hArr A uu B = B (iii) (A nn B) sub A

If A and B are subsets of the universal set U, then slow that (i) A sub A uu B , (ii) A sub B hArr A uu B = B (iii) (A nn B) sub A

If A sube B then A uu B=B

Prove the following,for sets A,B,C(i)A sube B,B sube C rArr A sube C(ii)A sube B hArr A uu B=B,A sube B hArr A nn B=A

Prove the following : A sub B iff A uu B=B .

For all sets A, B and C, if A sub B , then A uu C sub B uu C .

For all sets A, B and C, if A sub B , then A uu C sub B uu C .

If A and B are finite sets, such that A sub B , then n(A uu B) is equal to "………"

If A and B are finite sets, such that A sub B , then n(A uu B) is equal to "………"