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Sets-II Starter Quiz-2
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Question 1
Suppose that R is transitive relation on the set Z of all integers, and for any two integers a, b ∈ Z, if |a – b| = 2 then a R b.
Which of the following is true ?
Question 2
The size of a proper subgroup of a finite group G is 31. The size of the smallest possible group G is ____.
Question 3
Let X be an empty set. How many number of elements in P(P(P(X))) where P(X) is power set of X?
Question 4
The number of relations which are either symmetric or antisymmetric with 4 elements are ________.
Question 5
A binary operation Η on a set of integers is defined as . Which one of the following statements is true about Η?
Question 6
In the set {1, 2, 3} a relation R = {(1, 2), (2, 3)}. How many more members must be included in R so that R will be an equivalence relation?
Question 7
Consider the following statements :
S1 : The number of relations that are both reflexive and asymmetric is 0.
S2 : The number of relations that are both symmetric and asymmetric is 0.
Which option is correct?
S1 : The number of relations that are both reflexive and asymmetric is 0.
S2 : The number of relations that are both symmetric and asymmetric is 0.
Which option is correct?
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GATE & PSU CSGeneralOct 17GATE & PSU CS