1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following relations on the set of real numbers $$\mathrm{R}$$ is an equivalence relation?

A
$$ a R_1 b \Leftrightarrow|a|=|b| $$
B
$$ a R_3 b \Leftrightarrow \text { adivides } b $$
C
$$ a R_2 b \Leftrightarrow a \geq b $$
D
$$ a R_4 b \Leftrightarrow a < b $$
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The shaded region in the Venn diagram represents

COMEDK 2024 Evening Shift Mathematics - Sets and Relations Question 1 English

A
$$A^{\prime} \cap B$$
B
$$A \cap B$$
C
$$(A \cap B)^{\prime}$$
D
$$A^{\prime} \cap B^{\prime}$$
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two finite sets have '$$m$$' and '$$n$$' number of elements respectively. The total number of subsets of the first set is 112 more than the total number of subsets of the second set. Then the values of $$\mathrm{m}$$ and $$\mathrm{n}$$ are respectively.

A
7, 4
B
7, 7
C
4, 4
D
4, 7
4
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$A=\{a, b, c\}, B=\{b, c, d\}$$ and $$C=\{a, d, c\}$$ then $$(A-B) \times(B \cap C)$$ is equal to

A
$$\{(a, c),(a, d)\}$$
B
$$\{(a, b),(c, d)\}$$
C
$$\{(c, a),(d, a)\}$$
D
$$\{(a, c),(a, d),(b, d)\}$$
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