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The number of ways in which n book...

The number of ways in which n books can be arranged so that two particular books are not together is

A

`(n-1)!(n-1)`

B

`(n+2)(n-1)!`

C

`(n+2)(n+1)!`

D

`(n-2)(n-1)!`

Text Solution

Verified by Experts

The correct Answer is:
D
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1A (PERMUTATIONS )
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