Sets and Notation (HSC SSCE Mathematics Advanced): Quizzes

A collection of distinct objects

$n(A)$ or $|A|$

$3$

$\varnothing$

$0$

Every element of $B$ is in $A$

$B$ has strictly fewer elements

Yes, $A \subseteq A$ always

$\{2, 4\}$

All elements under consideration