Q. A function is defined by mapping f : A → B such that A contains m elements and B contains n elements and 1≤n≤m then number of onto functions are ________

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Q. {x: x is an integer neither positive nor negative} is ________

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Q. {x: x is a real number between 1 and 2} is an ________

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Q. Write set {1, 5, 15, 25,…} in set-builder form.

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Q. Express {x: x= n/ (n+1), n is a natural number less than 7} in roster form.

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Q. Number of power set of {a, b}, where a and b are distinct elements.

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Q. Which of the following is subset of set {1, 2, 3, 4}?

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Q. A = {∅,{∅},2,{2,∅},3}, which of the following is true?

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Q. Subset of the set A= { } is?

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Q. {x: x ∈ N and x is prime} then it is ________

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Q. Convert set {x: x is a positive prime number which divides 72} in roster form.

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Q. A __________ is an ordered collection of objects.

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Q. The set O of odd positive integers less than 10 can be expressed by _____________

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Q. Power set of empty set has exactly _________ subset.

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Q. What is the Cartesian product of A = {1, 2} and B = {a, b}?

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Q. The Cartesian Product B x A is equal to the Cartesian product A x B.

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Q. What is the cardinality of the set of odd positive integers less than 10?

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Q. Which of the following two sets are equal?

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Q. The set of positive integers is _____________

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Q. What is the Cardinality of the Power set of the set {0, 1, 2}?

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