Question

Write the given set in Roster Form:

(d) Single digital number that are ​perfect squares as well.

Answer 1

Step: Writing the given set in roster form.

Let us find squares of some single digit numbers which are :
\(0^{2}=0\)
\(1^{2}=1\)
\(2^{2}=4\)
\(3^{2}=9\)
\(4^{2}=16\)
\(5^{2}=25\)

We can see that square of \(4\) and above numbers give two-digit numbers.

Hence, the roaster form of given set is \(\left \{ 0,1,4,9 \right \}\).