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fredd [130]
3 years ago
6

Please write me the equation!! Thankyouuu

Mathematics
1 answer:
yan [13]3 years ago
7 0

Some of the writing on the paper is not included. If you can reply with the missing information, I'll do my best to help you :)

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Given n objects arranged in a row, a subset of these objects is called unfriendly if no two of its elements are consecutive. Sho
Vesna [10]

Complete question is;

Given n objects are arranged in a row. A subset of these objects is called unfriendly, if no two of its elements are consecutive. Show that the number of unfriendly subsets of a k-element set is ( n−k+1 )

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Answer:

I've been able to prove that the number of unfriendly subsets of a k-element set is;

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Step-by-step explanation:

I've attached the proof that the number of unfriendly subsets of a k-element set is;

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Answer:

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Step-by-step explanation:

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