Question

Which of the following two sets are equal?

• A. $A=\{1,2\}$ and $B=\left\{1\right\}$
• B. $A=\{1,2\}$ and $B=\{1,2,3\}$
• C. $A=\{1,2,3\}$ and $B=\{2,1,3\}$
• D. $A=\{1,2,4\}$ and $B=\{1,2,3\}$

Answer 1

The correct option is C $A=\{1,2,3\}$ and $B=\{2,1,3\}$

$A=\{1,2,3\}$

$B=\{2,1,3\}$

$A=B$(Both set A and B contain same element )