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

In this video I work through 129 examples of evaluating trigonometric expressions. We will evaluate the sine, cosine, and tangent using angles from the unit circle. To do this I will sketch each angle ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American On Monday, the Onion reported that the ...

Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing angle in a right-angled triangle when two sides are known. An understanding of the three ...

Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.