A man has 10 friends

MATHEMATICS · Single correct · CBSE · Mathematics · Permutations and Combinations · Permutations and Combinations

Problem

A man has 10 friends. In how many ways can he invite one or more of them to a party? (1)

10!

(2)

2^{10}

(3)

10!-1

(4)

2^{10}-1

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