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IIIT Hyderabad Practice Quiz : Discrete Mathematics-3

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Question 1

Let Cn be a cycle graph with vertices (n ≥ 3). If the covering number of Cn is α and the chromatic number of Cn is β, then 2α + β =?
(Note: n is even)

Question 2

Identify the contrapositive for the following statement. “If a real number is greater than 3, then its square is greater than 9.”

Question 3

The set of intelligent students in a class is

Question 4

Consider the following statements :

S1: x y z [ x+ y = z]

S2: x y z [x + y = z]

where x, y, z are real numbers. Which of the following is correct ?

Question 5

What is the number of symmetric binary relation on a Set ‘A’ containing ‘n’ elements?
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Oct 11GATE & PSU CS