A is a set containing n elements. A subset P_1 is chosen and | Filo
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Class 11

Math

JEE Main Questions

Permutations and Combinations

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is a set containing elements. A subset is chosen and is reconstructed by replacing the elements of . The same process is repeated for subsets with . The number of ways of choosing so that is (a) (b) (c) (d) none of these

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