Question 11 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$A -( B \cap C )$
Answer$A -( B \cap C )=\{8,24\}$
View full question & answer→Question 21 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$B \cap C ^{\prime}$
Answer$B \cap C ^{\prime}=\{9,18,36\}$
View full question & answer→Question 31 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$A \cap B ^{\prime}$
Answer$A \cap B ^{\prime}=\{8,24\}$
View full question & answer→Question 41 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$A \cup C$
Answer$A \cup C =\{1,2,3,4,6,8,12,16,24,48\}$
View full question & answer→Question 51 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$B \cup C$
Answer$B \cup C =\{1,2,3,4,6,8,9,12,16,18,24,36,48\}$
View full question & answer→Question 61 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$C - A$
Answer$C - A =\{16,48\} $
View full question & answer→Question 71 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$A \cup B$
Answer$A \cup B =\{1,2,3,4,6,8,9,12,18,24,36\}$
View full question & answer→Question 81 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$C ^{\prime}$$\quad$
Answer$C ^{\prime}=\{9,18,36,72,144\}$
View full question & answer→Question 91 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$B ^{\prime}$$\quad$
Answer$B ^{\prime}=\{8,16,24,48,72,144\}$
View full question & answer→Question 101 Mark
Let
$\begin{aligned} \xi & =\{x \mid x \in N, x \text { is a factor of } 144\}, \quad A=\{x \mid x \in N, x \text { is a factor of } 24\}, \\ B & =\{x \mid x \in N, x \text { is a factor of } 36\}, \quad C =\{x \mid x \in N, x \text { is a factor of } 48\} .\end{aligned}$
$A ^{\prime}$$\quad$
Answer$A ^{\prime}=\{9,16,18,36,48,72,144\}$
View full question & answer→Question 111 Mark
Let $\xi=\{x \mid x \in Z ,-4 \leq x \leq 4\}, A =\{x \mid x \in W, x<4\}$ and $B=\{x \mid x \in N, 2 < x \leq 4\}$.Find : (i) $A ^{\prime}$ and (ii) $B ^{\prime}$.
Answer(i) $A ^{\prime}=\{-4,-3,-2,-1,4\}$ (ii) $B ^{\prime}=\{-4,-3,-2,-1,0,1,2\}$
View full question & answer→Question 121 Mark
Let $\xi=\{13,14,15,16,17,18,19,20,21\}, A =\{13,17,19\}$ and $B =\{14,16,18,20\}$. Find (i) $A ^{\prime}$ and (ii) $B ^{\prime}$.
Answer(i) $A ^{\prime}=\{14,15,16,18,20,21\}$ (ii) $B ^{\prime}=\{13,15,17,19,21\}$
View full question & answer→Question 131 Mark
Let $A =\{1,4,7,8\}$ and $B =\{4,6,8,9\}$. Find (i) $A - B $ (ii) $B - A$.
Answer(i) $A - B =\{1,7\}$ (ii) $B - A =\{6,9\}$
View full question & answer→Question 141 Mark
Let A={2,3,4,6}, B={5,7,8} and C={2,7,8,9}. Find : $B \cap C$
Answer$B \cap C =\{7,8\}$
View full question & answer→Question 151 Mark
Let A={2,3,4,6}, B={5,7,8} and C={2,7,8,9}. Find : $A \cap C$
View full question & answer→Question 161 Mark
Let A={2,3,4,6}, B={5,7,8} and C={2,7,8,9}. Find : $A \cap B$
View full question & answer→Question 171 Mark
Let A={2,3,4,6}, B={5,7,8} and C={2,7,8,9}. Find : $A \cup C$
Answer$A \cup C =\{2,3,4,6,7,8,9\}$
View full question & answer→Question 181 Mark
Let A={2,3,4,6}, B={5,7,8} and C={2,7,8,9}. Find : $B \cup C$
Answer$B \cup C =\{2,5,7,8,9\}$
View full question & answer→Question 191 Mark
Let A={2,3,4,6}, B={5,7,8} and C={2,7,8,9}. Find : $A \cup B$
Answer$A \cup B =\{2,3,4,5,6,7,8\}$
View full question & answer→Question 201 Mark
Let A={a, b, c, d}, B={b, c, e} and C={a, b, e}. Find :$A \cap C$
Answer$A \cap C =\{a, b\}$
View full question & answer→Question 211 Mark
Let A={a, b, c, d}, B={b, c, e} and C={a, b, e}. Find :$B \cap C$
Answer$B \cap C =\{b, e\}$
View full question & answer→Question 221 Mark
Let A={a, b, c, d}, B={b, c, e} and C={a, b, e}. Find :$A \cap B$
Answer$A \cap B =\{b, c\}$
View full question & answer→Question 231 Mark
Let A={a, b, c, d}, B={b, c, e} and C={a, b, e}. Find :$A \cup C$
Answer$A \cup C =\{a, b, c, d, e\}$
View full question & answer→Question 241 Mark
Let A={a, b, c, d}, B={b, c, e} and C={a, b, e}. Find :$B \cup C$
Answer$B \cup C =\{a, b, c, e\}$
View full question & answer→Question 251 Mark
Let A={a, b, c, d}, B={b, c, e} and C={a, b, e}. Find :$A \cup B$
Answer$A \cup B =\{a, b, c, d, e\}$
View full question & answer→Question 261 Mark
The statement is true or not true :
If A has $n$ elements, then $P ( A )$ has $2^n$ subsets.
View full question & answer→Question 271 Mark
The statement is true or not true :
Every set has a proper subset.
Question 281 Mark
The statement is true or not true :
Every subset of an infinite set is infinite.
Question 291 Mark
The statement is true or not true :
Every subset of a finite set is finite.
Question 301 Mark
The statement is true or not true :
For any two sets A and B , either $A \subseteq B$ or $B \subseteq A$.
View full question & answer→Question 311 Mark
The statement is true or not true :
$\{\phi\} \subset\{0\}$
View full question & answer→Question 321 Mark
The statement is true or not true :
$\phi \in\{\phi,\{0\}\}$
View full question & answer→Question 331 Mark
The statement is true or not true :
$\phi \in\{\phi\}$
View full question & answer→Question 341 Mark
The statement is true or not true :
$\phi \in\{0\}$
View full question & answer→Question 351 Mark
The statement is true or not true :
$\phi=\{\phi\}$
View full question & answer→Question 361 Mark
The statement is true or not true :
$\phi=\{0\}$
View full question & answer→Question 371 Mark
The statement is correct or incorrect:
$\{a\} \subseteq\{\{a\}, b\}$
View full question & answer→Question 381 Mark
The statement is correct or incorrect:
$a \in\{\{a\}, b\}$
View full question & answer→Question 391 Mark
The statement is correct or incorrect:
$\{\phi\} \subset\{a, b, c\}$
View full question & answer→Question 401 Mark
The statement is correct or incorrect:
$\phi \subset\{a, b, c\}$
View full question & answer→Question 411 Mark
The statement is correct or incorrect:
$\{a, b\} \in\{\{a, b\}, c\}$
View full question & answer→Question 421 Mark
The statement is correct or incorrect:
$\phi \in\{a, b, c\}$
View full question & answer→Question 431 Mark
The statement is correct or incorrect:
$\{a\} \subset\{a, b, c\}$
View full question & answer→Question 441 Mark
The statement is correct or incorrect:
$\{a\} \in\{a, b, c\}$
View full question & answer→Question 451 Mark
The statement is correct or incorrect:
$a \subset\{a, b, c \}$
View full question & answer→Question 461 Mark
Let $A=\{1,\{2\}\}$. Find the power set of $A$.
Answer$P ( A )=\{\phi,\{1\},\{\{2\}\},\{1,\{2\}\}\}$
View full question & answer→Question 471 Mark
Which of the following is empty set :
$H =\{0\}$.
View full question & answer→Question 481 Mark
Which of the following is empty set :
$G =\{x \mid x$ is an even prime $\}$.
View full question & answer→Question 491 Mark
Which of the following is empty set :
$F =\{x \mid x$ is a prime number, $90 < x<96\}$.
View full question & answer→Question 501 Mark
Which of the following is empty set :
$E =\left\{x \mid x \in N, x^2+4=0\right\}$.
View full question & answer→