Question

If A = {x : x = $n^2,n\in N,n\le 4\}$, then which of the following statements are correct?

• A. A null set
• B. A singleton set
• C. A finite set
• D. Not a well defined collection

Answer 1

Answer: (A), (C), (D)

The correct options are
A

A null set

C

A finite set

D

Not a well defined collection

A = {x : x = $n^2,n\in N,n\le 4\}$

A = {1, 4, 9, 16}

$1\in A$

$25\notin A$

$9\in A$

Set A is a finite set.