In how many ways \[n\] books can be arranged in a row so that two specified books are not together

In how many ways \[n\] books can be arranged in a row so that two spec

1.	In how many ways \[n\] books can be arranged in a row so that two specified books are not together
A.	\[n\,!\,-(n-2)\,!\]
B.	\[(n-1)\,!\,(n-2)\]
C.	\[n\,!-2(n-1)\]
D.	\[(n-2)\,n!\]
Answer» C. \[n\,!-2(n-1)\]

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In how many ways \[n\] books can be arranged in a row so that two specified books are not together

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