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CBSE Class 11 Sets — Definitions, Roster vs Set-Builder, Empty/Finite/Infinite/Equal Sets, Subsets — practice questions
16 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 Sets — Definitions, Roster vs Set-Builder, Empty/Finite/Infinite/Equal Sets, Subsets in the app →In mathematics, a SET is defined as:Which symbol denotes 'belongs to' / 'is an element of' in set theory?The set of all letters in the word 'SCHOOL' in roster form is:The set A = {x : x is a positive integer and x² < 40} in roster form is:Which of the following is an EMPTY set?Let A = {x : x is a natural number which divides 42}. Set-builder form A in roster form is:Set A = {x : x = n/(n+1), where n is a natural number and 1 ≤ n ≤ 6} in roster form is:Sets B = {x : x > 15 and x < 5}, C = {x : x − 5 = 0}, E = {x : x is an integral positive root of x² − 2x − 15 Which set is FINITE?For the equation x² + x − 2 = 0, the solution set in roster form is:Set X = letters in 'ALLOY'; set B = letters in 'LOYAL'. Compare:Let A = {n ∈ ℤ : n² ≤ 4} and B = {x ∈ ℝ : x² − 3x + 2 = 0}. Are A and B equal?Which statement about the EMPTY SET ∅ is INCORRECT?Which collection is NOT a well-defined set?A = {1, 3, 5} and B = {x : x is an odd natural number less than 6}. What is the relationship?For A = {1, 2, 3}, identify which is a PROPER subset of A.