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Algebra Permutations And Combinations

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A set contains (2n + 1) elements. The number of sub-sets of the set which contain at most n elements is

A. 2ⁿ

B. 2ⁿ⁺¹

C. 2^n-1

D. 2²ⁿ

E. None of the above

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Correct choice: D

Explanation:

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Eamcet Mathematics Algebra Permutations And Combinations

Eamcet Mathematics
Algebra Permutations And Combinations