# Precalculus Examples

A perfect square number is an integer that is the square of another integer. , which is not an integer number.

Since can't be the square of another integer, it is not a perfect square number.

A perfect square number is an integer that is the square of another integer. , which is not an integer number.

Since can't be the square of another integer, it is not a perfect square number.

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$\text{}\left[\begin{array}{cc}{x}^{2}\text{}& \text{}\genfrac{}{}{.05ex}{}{1}{2}\text{}\\ \text{}\sqrt{\pi}\text{}& \text{}{\displaystyle \int}xdx\text{}\end{array}\right]\text{}$