Grade 11 Trigonometry Reduction BASIC practice part 1

Grade 11 Trig Reduction SHORT re-cap and BASIC PRACTICE - How to reduce angles in trigonometry. Introduction video: https://youtu.be/5tu0ze8bzjQ More trigonometry: https://www.youtube.com/playlist?list=PLRMp_XjPkvIK5NWLuuTkC917fQwOBgjK4 #trigonometry #maths #reduce #grade11 #grade12