If $A$ is any set, then
If $A$ is any set, then
- A
$A \cup A' = \phi $
- B
$A \cup A' = U$
- C
$A \cap A' = U$
- D
None of these
Similar Questions
Let $\mathrm{U}$ be universal set of all the students of Class $\mathrm{XI}$ of a coeducational school and $\mathrm{A}$ be the set of all girls in Class $\mathrm{XI}$. Find $\mathrm{A}'.$
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