Evaluate the six trigonometric functions given a point

The video tutorial explains how to solve a trigonometry problem by creating a triangle when a point is not on the unit circle. It covers plotting coordinates, forming right triangles, applying the Pythagorean theorem, and simplifying expressions. The process involves finding the sine of an angle by calculating the hypotenuse and rationalizing the denominator.

How do you find the sine of an angle using the lengths of the sides of a triangle?

What steps are involved in rationalizing the denominator when calculating sine?