For any real number x x x , let ⌊ x ⌋ \lfloor x \rfloor ⌊ x ⌋ be the largest integer less than or equal to x x x . If ∑ n = 1 N ⌊ 1 5 + n 25 ⌋ = 25 , ...
Question
For any real number
, let
be the largest integer less than or equal to
. If
then
is: