A2 Maths: Double and Compound Angle Trigonometry

Part 3 in the A2 trigonometry series! This time it is the Double and Compound Angle formula and questions! #maths #alevel #trigonometry Thanks for watching :) Subscribe: https://www.youtube.com/channel/UCVjync7PoJ-UCxQm0QoOgXQ?sub_confirmation=1 My Instagram: https://www.instagram.com/judeekennedy/ Join this channel to get access to perks: https://www.youtube.com/channel/UCVjync7PoJ-UCxQm0QoOgXQ/join