Section 5.4 - Video 1: Other Trig Function Definitions and Relationships
Channel: The Math Repository
Date: 2022-07-10

MATH 127 (Precalculus 2 / Trigonometry)

Textbook: https://www.opentextbookstore.com/precalc/
Additional Materials: https://github.com/AaronWongNSC/Trigonometry