Question 11 Mark
If two sets A and B are disjoint, then $n(A \cup B )=n(A)+n(B)$ _________.
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If $n(A \cap B )=\phi$, then $n(B- A )=n(B)$ _________.
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The complement of a set is a subset of $U$ _________.
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Any set A and its complement are equivalent sets ________.
Question 51 Mark
The number of proper subsets of a set containing $n$ elements is $2^n$ ________.
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The statement is true or false : Every subset of an infinite set is infinite.
Question 71 Mark
The statement is true or false : Every subset of a finite set is finite.
Question 81 Mark
The statement is true or false : $\{1\} \subset\{0,1\}$
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The statement is true or false : $0 \notin \phi$
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The statement is true or false : $\phi \in\{a, b, c\}$
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The statement is true or false : $\phi \subset\{a, b, c\}$
View full question & answer→Question 121 Mark
The statement is true or false : $\{a\} \subset\{b, c, d, e\}$
View full question & answer→Question 131 Mark
The statement is true or false : $\{a\} \subset\{a, b, c\}$
View full question & answer→Question 141 Mark
Indicate the given statement is true or false : $\{$ Composite numbers $\} \subseteq\{$ Odd numbers $\}$
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Indicate the given statement is true or false : $\{$ Integers $\} \subseteq\{$ Whole numbers $\}$
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Indicate the given statement is true or false : (Natural numbers) $\subseteq$ (Whole numbers)
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Indicate the given statement is true or false : (Rhombuses) $\subseteq$ (Parallelograms)
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Indicate the given statement is true or false : $\{$ Squares $\} \subseteq\{$ Rectangles $\}$
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Indicate the given statement is true or false : (Triangles) $\subseteq$ (Quadrilaterals)
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$0 \in \phi$.
View full question & answer→Question 211 Mark
$(1,2,3,1,2,3,1,2,3, \ldots$.$) is an infinite set.$
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$\{a, b, c, 1,2,3\}$ is not a set.
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If $D =\{x: x \in W, x<4\}$, then $n( D )=4$.
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$(3,5) \in\{1,3,5,7,9\}$.
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$\{x: x \in W, x+5=5\}$ is a singleton set.
View full question & answer→Question 261 Mark
If C is the set of all prime numbers less than 80 , then $57 \in C$.
View full question & answer→Question 271 Mark
If B is the set of all consonants, then $c \in B$.
View full question & answer→Question 281 Mark
If $A$ is the set of all non-negative integers, then $0 \in A$.
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