integral from 0 to 4 { root x} where { x} is d fractional part of x is equal to

7/3

5/3

3/5

1/3

integral from 0 to 4-------root(x) - [root(x)]

we'll break it into 2

x^1/2 = 2/3 (x^3/2) = 16/3

[root(x)] = [root(x)] + [root(x)]

             = 0 + 1(4-1)

          = 3

ans is = 16/3 - 3

          = 7/3

do rate

cheerio!