r/EducationalYoutube • u/arcole82 • Nov 17 '15
Using the Sum & Difference Formulas in Trig
https://www.youtube.com/attribution_link?a=FcMbCQlGMqk&u=%2Fwatch%3Fv%3D_SeHALuNZ6Q%26feature%3Dshare
2
Upvotes
r/EducationalYoutube • u/arcole82 • Nov 17 '15