It is now easy to come up with curves of various trigonometric functions such as the sine and cosine. While this might seem a little bit hard on many, reading this article will guide you on how to make a cosine curve in excel.

Here is the step-by-step guide on how you can make a cosine graph in excel;

Step 1: Create your data in excel like the one in figure 1 below. Use the COS function to find the cosine in radians as shown;

Figure 1: How to make a cosine graph

Step 2: Create a chart

Head to the menu bar and choose “Insert”. After that, choose one of the scatter models.

Choose a scatter model that will bring out the points in figure 1 above. This will look as the one below;

Figure 2: A complete cosine graph in excel

The cosine graph will appear as the one in figure 2 above.