If  [x] denotes the greatest less than or equal to x and   F = R - [R]  where R `= (5sqrt5 + 11)^(2n
Channel: Doubtnut
Date: 2020-05-24

If  [x] denotes the greatest less than or equal to x and   F = R - [R]  where R `= (5sqrt5 + 11)^(2n +1)`, then Rf is equal to