Mathematics
The Empty Set, Finite and Infinite Sets, Equal Sets
Practice questions
If A is the set of natural numbers between 4 and 5, what kind of set is A?Which statement is correct about the set A = {0, 2, 4, 6, 8}?Set A is the set of all positive multiples of 7. What type of set is it?If A = {5, 10, 15} and B = {15, 5, 10}, how are A and B related?What is the correct form of A = {x : x ∈ N, x < 1}?If P = {1, 3, 5, 7} and Q is the set of positive odd numbers less than 8, which statement is correct?Which of the following is not an empty set?Set A is the set of birth dates of students in a class. If the class has 40 students, what kind of set will A be?If A = {∅, 0}, how many elements are there in A?If A = {1, 4, 9} and B = {x : x = n², n ∈ ℕ, 1 ≤ n ≤ 3}, what is the correct relation?How many elements are in A = {x : x ∈ ℤ, x² = 1}?If A = {x : x ∈ ℕ, x is even and x < 10}, which set is A?Which statement is correct for ∅ and {∅}?If A is the set of names of the days in a week, how many elements will A have?What kind of set is A = {x : x ∈ ℕ, x is a factor of 13}?If A = {x : x ∈ N, x is prime and x < 2}, what is A?Set A is the set of all natural numbers greater than 50. What type of set is A?If A = {3, 6, 9} and B = {9, 6, 3, 3}, which statement is correct?Set A is the set of all positive multiples of 10 that are less than 100. How many elements does it contain?If A = {x : x ∈ Z, x² = −4}, what kind of set is A?