Question

The set $S=\{1,4,9,16,25,36\}$ in the roster form is

• A. {Squares of natural numbers}
• B. $\left\{x|x\text{is a square of a natural number}\right\}$
• C. The set of squares of first six natural numbers.
• D. $x\mid x=x^2$, $n\in N$ and $n\le 6$

Answer 1

Answer: (B)

$\left\{x|x\text{is a square of a natural number}\right\}$

We can notice that the elements of S are squares of first six natural numbers.

Thus, the roster form is $\left\{x|x\text{is a square of a natural number}\right\}$.