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" 12.If "(n!)/((2!)^(1times(n-2)!)):(n!)...

" 12.If "(n!)/((2!)^(1times(n-2)!)):(n!)/((4!)(n-4)!)=2:1," find the value of "n

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If (n!)/((2!)xx(n-2)!): (n!)/((4!)xx(n-4)!)=2:1 , find the value of n.

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If (n!)/( 2!( n-2) !) and (eta !)/( 4!(n-4)!) are in the ratio 2: 1 , find the value of n.