Let and consider its domain restricted to the interval

MATHEMATICS · Single correct · AoPS · Mathematics · Special Functions · Special Functions

Problem

Let

g(x)=\lfloor x\rfloor

and consider its domain restricted to the interval

[1.2,4.7]

. Which of the following is the range of

g

on this interval? (a)

\{2,3,4,5\}

(b)

\{1,2,3,4\}

(c)

[1.2,4.7]

(d)

\{1,2,3,4,5\}