# Precalculus Examples

Step 1

The length of the vector is the square root of the quantity of the coordinate squared plus the coordinate squared.

Step 2

Step 2.1

Raise to the power of .

Step 2.2

Raise to the power of .

Step 2.3

Add and .

Step 2.4

Rewrite as .

Step 2.5

Pull terms out from under the radical, assuming positive real numbers.