Grade 11 Trigonometry Reduction with Co-Functions

Grade 11 Trig Reduction with CO-FUNCTIONS (co-ratios) - we use complementary angles. We need to be aware when dealing with 90 and 270! PRACTICE VIDEO: https://youtu.be/pJSutY_xT4E Introduction to reduction video: https://youtu.be/5tu0ze8bzjQ More trigonometry: https://www.youtube.com/playlist?list=PLRMp_XjPkvIK5NWLuuTkC917fQwOBgjK4 #trigonometry #maths #reduce #grade11 #grade12