Pre-Algebra Examples

$(1, 1)$

Step 1

$(1, 1)$ is the same as ${1}$ after removing the duplicate elements.

${1}$

Step 2

The cardinality of a set is the number of members in the set.

$1$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$