Understanding Trigonometric Function Graphs
Have you ever seen ocean waves? Their up-and-down movement forms patterns that repeat regularly. It turns out that these patterns can be modeled with trigonometric functions.
Before studying trigonometric function graphs, we need to understand angle measurement in radians. In daily life, we are accustomed to using degrees. However, in advanced mathematics, radians are more frequently used.
Converting Degrees and Radians
One complete rotation of a circle is or radians. This relationship gives us conversion formulas: