Tutorial for evaluating the six trig functions given a coordinate point

The video tutorial explains the importance of triangles in evaluating trigonometric functions, emphasizing the use of reference angles and the coordinate system. It covers the calculation of trigonometric ratios using side lengths and the hypotenuse, demonstrating the process with examples and highlighting the need for understanding the unit circle and reference angles.

Discuss the relationship between the unit circle and triangles in trigonometry.

What are the trigonometric functions derived from the triangle with sides 3 and -5?

How do you rationalize the denominator in trigonometric function ratios?