`IF (n !)/((n-2)!)and(n !)/((n-4)!)` are in the ratio `1: 12` , then `n =`

If (n!)/(2!(n-2)!) and (n!)/(4!(n-4)!) are in the ratio 1:2, then n=

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

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

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

I f(n !)/(2!(n-2)!)and(n !)/(4!(n-4)!)a r e i n t h e r a t i o2:1, n!4!(n-4 are in the ratio 2:1, then nn!a) If 21(n -2)1 and

IF C (2n, 3) : C (n,2) = 12 : 1 , then n=

The sum of n terms in two A.P's are in the ratio 3n + 1 : n + 4 , then the ratio of 4th terms is

If P(n) :1+4+7…….+(3n-2)=(1)/(2)n(3n-1) .Verify P(n) for n =1,2.