Welcome to the College Prep Confidential Podcast

Unit Circle

Demonstrates what a unit circle is and how it relates to trigonometry. Show the sin, cos, and tan formulas derived from the unit circle. Also derives the unit circle formula for the circle equation. Derives the trigonometry identity sin^2 + cos^2 = 1

Time Stamps
00:00 Intro
00:27 Unit Circle Definition
00:50 Why is it called a unit circle?
01:11 How is the unit circle equation derived?
01:54 How the unit circle relates to trigonometry?
02:11 sin of an angle on the unit circle
02:52 cos of an angle on the unit circle
03:18 tan of an angle on the unit circle
03:55 Trigonometry Identities from the unit circle
04:13 Conclusion