Skip to content

PRO TIP Block youtube.com at the DNS level — Pi-hole, NextDNS or your hosts file — but allow youtube-nocookie.com and i.ytimg.com. These tutorials keep playing; the rabbit hole does not.

Learning without distractions

How To Find The Exact Values of Trig Functions

1.1M views on YouTube

This video explains how to find the exact values of trig functions such as sine, cosine, and tangent using the 30-60-90 and 45-45-90 reference triangles and using SOHCAHTOA.

Trigonometry – Free Formula Sheet: https://www.video-tutor.net/formula-sheets.html

Trigonometry Video Lessons:
https://www.video-tutor.net/evaluating-trig-expressions.html

Final Exam and Test Prep Videos:
https://bit.ly/41WNmI9