Mathematics
The Empty Set, Finite and Infinite Sets, Equal Sets
Practice questions
If S = {x : x is a two-digit natural number}, what type of set is S?What is the correct conclusion for the set T = {x : x ∈ ℕ, 3 < x < 4}?If U = {x : x ∈ ℤ, −2 ≤ x ≤ 2}, how many elements does U have?What type of set is V = {x : x is a positive integer divisible by 7}?If W = {x : x ∈ ℕ and x is a factor of 12}, what type of set is W?If X = {x : x ∈ ℕ and x is a multiple of 12}, what type of set is X?What type of set is Y = {x : x ∈ ℕ and x is divisible by both 2 and 3}?If Z = {x : x ∈ ℕ, x is divisible by both 2 and 3, and x < 20}, what type of set is Z?Which option correctly describes ∅?Which statement about ∅ and {0} is correct?If A₁ = {x : x ∈ ℤ and x² = 2}, what is A₁?If B₁ = {x : x ∈ ℝ, x² = 2}, what type of set is B₁?If C₁ = {x : x is an odd natural number less than 30}, which statement is correct about C₁?If D₁ = {x : x is an odd natural number greater than 30}, what type of set is D₁?If E₁ = {x : x ∈ ℕ and 5 ≤ x ≤ 5}, what type of set is E₁?Which pair is not a pair of equal sets?What is correct about F₁ = {x : x ∈ ℕ, x is less than 15 and greater than 15}?If G₁ = {x : x ∈ ℕ, x is a factor of 9 and x is even}, what is G₁?If H₁ = {x : x ∈ ℕ, x is a factor of 16 and x is even}, what type of set is H₁?What type of set is usually formed by the roll numbers of students in a class?