EM-1251

Subsets

E Math · Secondary 3 · Medium · Subsets

Let

A = \{a,b\}

and

B = \{a,b,c\}

. The relation between

A

and

B

is best written as

A\ \_\ B

. Which symbol should replace the blank?

$\subset$
$=$
$\not\subset$
$\not\subseteq$

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