Question

If $A=\{1,4,5,7,8\}$ and $B=\{8,1,5,4,7\}$ then which of the following statements are true?

• A. Set A and set B are equal sets.
• B. set A and set B are infinite sets.
• C. set A and set B are null sets.
• D. set A and set B are equivalents sets.

Answer 1

Answer: (A), (D)

The correct options are
A

Set A and set B are equal sets.

D

set A and set B are equivalents sets.

Given,

$A=\{1,4,5,7,8\}$ and $B=\{8,1,5,4,7\}$

Clearly, all the elements of set A and set B are same and numbers of elements are equal.

$\Rightarrow$ Set A and set B are equal sets.

Also, set A and set B are equivalents sets.