Which of the following two sets are equal? - Vidyadip

MCQ

Which of the following two sets are equal?

A
$A = \{1, 2\}$ and $B = \{1\}$
B
$A = \{1, 2\}$ and $B = \{1, 2, 3\}$
✓
$A = \{1, 2, 3\}$ and $B = \{2, 1, 3\}$
D
$A = \{1, 2, 4\}$ and $B = \{1, 2, 3\}$

✓

Answer

Correct option: C.

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

Two sets are equal if and only if they have the same elements.
So, $A =\{1, 2, 3\}$ and $B = \{2, 1, 3\}$ are equal sets.

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