Precalculus Examples

2 + | - 2 |

$2 + | - 2 |$

Step 1

The absolute value is the distance between a number and zero. The distance between

- 2

$- 2$ and

0

$0$ is

2

$2$ .

2 + 2

$2 + 2$

Step 2

Add

2

$2$ and

2

$2$ .

4

$4$

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⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

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