Let . Which of the following describes the range of…

MATHEMATICS · Single correct · A Level · Mathematics · Exponentials and logarithms · Exponentials and logarithms

Problem

Let

f(x)=\log_2\left(2^x\right)

. Which of the following describes the range of

f

? (a)

x\ge0

(b) All real numbers (c)

x>0

(d)

\mathbb{Z}