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Manish Lakra
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Asked: 2025-02-01T05:45:43+00:00 In:

If n(A) = 17,  n(B) = 8 for two disjoint sets A and B, then n(A ∪ B) =

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0%9
0%23
100%25 ( 1 voter )
0%None of these 
Based On 1 Vote

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Enhance your grasp of set theory with these engaging MCQs from Chapter 1 of Class 11 NCERT Mathematics (CBSE 2024-25). This chapter covers fundamental concepts like types of sets, subsets, power sets, union, intersection and complements. These multiple-choice questions test your conceptual clarity and problem-solving skills. Practicing them will strengthen your understanding of set operations, Venn diagrams and their real-world applications. Ideal for revision and exam preparation, these MCQs make learning interactive, effective and enjoyable for students.

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    1 Answer

    1. Choice (c) is correct. As A and B are disjoints sets. n(A ∪ B) = n (A) +n (B) = 17 + 8 = 25
      This question related to Chapter 1 maths Class 11th NCERT. From the Chapter 1. Sets. Give answer according to your understanding.

      For more please visit here:
      https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-1

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