Question

The set $\{x:x$ is a positive integer and $x^2<40\}$ can be written in roster form as

• A. $\{1,3,5,7\}$
• B. $\{1,2,3,4,5\}$
• C. $\{1,2,3,4,5,6\}$
• D. $\{2,4,6\}$

Answer 1

Answer: (C)

The required numbers are $1,2,3,4,5,6$. So, the given set in the roster form is $\{1,2,3,4,5,6\}$.