If A, B and C are three sets such that A...

If A, B and C are three sets such that `AnnB""=""AnnC` and `AuuB""=""AuuC` , then (1) `A""=""B` (2) `A""=""C` (3) `B""=""C` (4) `AnnB""=varphi`

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If A, B and C are three sets such that A nn B = A nn C and AuuB = A uu C , then

`A=C`

`B=C`

`A nn B =phi `

A=B

If A, B and C are three sets, then A-(B-C) equals to

A) `A-(B cap C)`

B) `(A-B) cup C`

C) `(A-B) cup (A cap C)`

D) `(A-B) cup (A-C)`

If A and B are two sets , then (AuuB)^(c) is :

`A^(c)capB^(c)`

`phi`

`A^(c)uuB^(c)`

None of these.