In this video, I will show you how to evaluate an angle in degrees using the sum formula of cosine. We will need to use the formula because we cannot evaluate using the unit circle. We will then ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

What is it? Virtual Nerd Mobile Math is a free math app from Pearson that provides on-the-go access to a video library of more than 1,500 math tutorials. The interactive tutorials, aligned to the ...