True False[1 Marks ]

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10 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark

If $A$ and $B$ are two sets, then $\left(A \cup B^{\prime}\right)^{\prime} \cap\left(A^{\prime} \cup B\right)^{\prime}=\{\phi\}$

Answer

False

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Question 21 Mark

For disjoint sets, $A \cap B =\phi$

Answer

True

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Question 31 Mark

If $A =\{1,2,3\}$ and $B =\{3\}, A - B =\{1,2\}$

Answer

True

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Question 41 Mark

The set of real numbers is represented by $R$.

Answer

False

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Question 51 Mark

If $[a, b]=a \leq x \leq b, x \in R$

Answer

True

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Question 61 Mark

De Morgan's Law : $( A \cup B )^{\prime}= A ^{\prime} \cup B ^{\prime}$

Answer

False

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Question 71 Mark

If $A$ is subset of universal set $U$, then its complement $A ^{\prime}$ is also a subset of U .

Answer

True

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Question 81 Mark

$A \cup(B \cup C)=(A \cup B) \cup C$

Answer

True

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Question 91 Mark

$A \cup B \neq B \cup A$

Answer

False

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Question 101 Mark

For any set $A$ and $B, A-B \neq B-A$

Answer

True

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True False[1 Marks ] - MATHS STD 11 Science Questions - Vidyadip

MATHS True False[1 Marks ]

True False[1 Marks ]

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