write the greatest integer smaller than `2sqrt5` and smallest integer greater than `2sqrt5`.

Integer greater than -151 :

a and b are any number and x and y are any non negative integers. f(a)= the greatest integer less than or equal to a g(a)= the smallest integer greater than or equal to a r(x, y)= the remainder when x is dividied by y. r((16, 7)-2 is equal to :

If [x] is the greatest integer less than or equal to x and (x) be the least integer greater than or equal to x and [x]^(2)+(x)^(2)gt25 then x belongs to

If [x] is the greatest integer less than or equal to x and (x) be the least integer greater than or equal to x and [x]^(2)+(x)^(2)gt25 then x belongs to

If [x] is the greatest integer less than or equal to x and (x) be the least integer greater than or equal to x and [x]^(2)+(x)^(2)gt25 then x belongs to