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If `(n+1)! =12 xx [(n-1)!]`, find the value of n.

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If `(n+1)! =12 xx [(n-1)!]`, find the value of n.
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Correct Answer - n = 3
`(n+1)xx n xx [(n-1)!]=12xx [(n-1)!] rArr (n+1) xx n =12=4xx3 rArr n =3.`
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