A) \[(2n+1)!\]
B) \[2(2n)!\]
C) \[2[(n+1)!]\]
D) \[2{{[(n+1)!]}^{2}}\]
E) \[{{[(n+1)!]}^{2}}\]
Correct Answer: D
Solution :
Required number of ways\[=2(1+n)!(n+1)!\] \[=2{{[(n+1)!]}^{2}}\]You need to login to perform this action.
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