Class 11 Maths MCQ – Sets and their Representations – 2

This set of Class 11 Maths Chapter 1 Multiple Choice Questions & Answers (MCQs) focuses on “Sets and their Representations – 2”.

1. Which of the following set is not possible?
a) Honest persons
b) Prime numbers up to 100
c) Even numbers up to 100
d) Letters forming the word SCHOOL
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2. Write solution set of equation x²-3x+2=0 in roster form.
a) {1,3}
b) {2,4}
c) {1,4}
d) {1,2}
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3. Write the set \({\frac{1}{2}, \frac{2}{3}, \frac{3}{4}, \frac{4}{5}, \frac{5}{6}}\) in set builder form.
a) {x: \(x=\frac{n}{n+1}\) where n is a natural number less than 6}
b) {x: \(x=\frac{n+1}{n+2}\) where n is a natural number less than 6}
c) {x: \(x=\frac{n+1}{n}\) where n is a natural number less than 6}
d) {x: \(x=\frac{n}{n+1}\) where n is a natural number less than 5}
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4. Write the set {x : x is an integer and x²-9=0} in roster form.
a) {3}
b) {-3}
c) {3,-3}
d) {9,3}
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5. What is the interval of f(x) = (x – 1)(x – 2)(x – 3)/(x³ + 6x² + 11x+ 6) where f(x) is negative?
a) (-∞, -3) ∪ (3, ∞)
b) (3, -2) ∪ (1, 1) ∪ (2, 3)
c) (-∞, -3) ∪ (2, -1) ∪ (1, 2) ∪ (3, ∞)
d) (-∞, ∞)
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6. What is the set of all x for which 1/(x – 1)(3 – x) ≤ 1?
a) (-∞, 1) ∪ (3, ∞)
b) (-∞, 1) ∪ (3, ∞) ∪ {2}
c) (-∞, 1) ∪ {2}
d) (3, ∞) ∪ {2}
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7. Which one of the following is the correct representation of set A = {2,4,8,16….} in set builder form?
a) {x: x = 2n where n ∈ N}
b) {x: x = 2ⁿ where n ∈ N}
c) {x: x = 4n where n ∈ N}
d) {x: x = 2n+4 where n ∈ N}
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8. Let A={1,2,3,4,5}. Insert appropriate symbol in 2 ________ A.
a) =
b) <
c) ∈
d) ∉
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9. Which one of the following is the correct representation of set A = {1,3,5,7….} in set builder form?
a) {x: x = 2n where n ∈ N}
b) {x: x = n²-1 where n ∈ N}
c) {x: x = 2n+1 where n ∈ N}
d) {x: x = 2n-1 where n ∈ N}
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10. Which of the following is true for set A = {1,2,3,5,7,10}?
a) 0 ∈ A
b) 2 ∈ A
c) 3 ∉ A
d) 5 ∉ A
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Sanfoundry Global Education & Learning Series – Mathematics – Class 11.

To practice all chapters and topics of class 11 Mathematics, here is complete set of 1000+ Multiple Choice Questions and Answers.

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