Question 21 MarkIf $A =\{1,2,3\}$ and $B =\{3\}, A - B =\{1,2\}$AnswerTrueView full question & answer→
Question 31 MarkThe set of real numbers is represented by $R$.AnswerFalseView full question & answer→
Question 51 MarkIf $A$ and $B$ are two sets, then $\left(A \cup B^{\prime}\right)^{\prime} \cap\left(A^{\prime} \cup B\right)^{\prime}=\{\phi\}$AnswerFalseView full question & answer→
Question 61 MarkDe Morgan's Law : $( A \cup B )^{\prime}= A ^{\prime} \cup B ^{\prime}$AnswerFalseView full question & answer→
Question 71 MarkIf $A$ is subset of universal set $U$, then its complement $A ^{\prime}$ is also a subset of U .AnswerTrueView full question & answer→