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 Let 1 ≤ m < n ≤ p. The number of subsets of the set A - {1, 2, 3, p} having m, n as the least and the greatest elemens respectively, is
  • a)
    2n-m-1 - 1
  • b)
    2n-m-1
  • c)
    2n-m
  • d)
    none of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Let 1 ≤ m < n ≤ p. The number of subsets of the set A - {1, 2...
Total number of subsets
= The number of selections of at least two elements inluding m, n and natural numbers lying between m and n.
= total number of selections fro n - m - 1 different things
= 2n-m-1
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Let 1 ≤ m < n ≤ p. The number of subsets of the set A - {1, 2...
Sorry, but I'm not able to understand the meaning behind "Let 1". Could you please provide more context or clarify your request?
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Community Answer
Let 1 ≤ m < n ≤ p. The number of subsets of the set A - {1, 2...
Total number of subsets
= The number of selections of at least two elements inluding m, n and natural numbers lying between m and n.
= total number of selections fro n - m - 1 different things
= 2n-m-1
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Let 1 ≤ m < n ≤ p. The number of subsets of the set A - {1, 2, 3, p} having m, n as the least and the greatest elemens respectively, isa)2n-m-1- 1b)2n-m-1c)2n-md)none of theseCorrect answer is option 'B'. Can you explain this answer?
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